the squirting cucumber is diecious. the sexes are determined, not by heteromorphic sex chromosome, but by allele of two genes. the alleles at the two loci govern sexual phenotype as follow: M determines male fertility; m determine female sterility and f determines female fertility. in population of this plant, individual can be made male (approximately 50%) or female (approximately 50%). in addition, a hermaphrodite type is found, but only at very low frequency, the hermaphrodite has male and female organs on the same plant: (i) what must be full genotype of the male plant (ii) what must be the full genotype of the male plant (ii) what is the origin of the rare hermaphrodite?
Answers
Answer: The full genotype of a male plant in this population is MMFF. This genotype is determined by the alleles at the two loci that govern sexual phenotype: M (male fertility) and F (female fertility).
The full genotype of a female plant in this population is mmFF. This genotype is determined by the alleles at the two loci that govern sexual phenotype: m (female sterility) and F (female fertility).
The rare hermaphrodite plants in this population are most likely the result of mutations that occurred at one or both of the two loci that govern sexual phenotype. These mutations could have resulted in the expression of both male and female characteristics on the same plant.
I hope this helps! Let me know if you have any other questions.
Related Questions
what type of chemical reactions do the 1-4 straight chain alkanes undergo?
Answers
1-4 straight chain alkanes, also known as n-alkanes, undergo various types of chemical reactions, depending on the conditions and reactants involved.
What type of chemical reactions do 1-4 straight chain alkanes undergo?Some of the common reactions that 1-4 straight chain alkanes can undergo:
Combustion: Alkanes can burn in the presence of oxygen to form carbon dioxide and water, releasing heat and energy.
Halogenation: Alkanes can react with halogens such as chlorine or bromine to form alkyl halides. This reaction usually requires the presence of a catalyst or UV light.
Nitration: Alkanes can react with nitric acid and sulfuric acid to form nitroalkanes. This reaction is also called nitration of alkanes.
Isomerization: Alkanes can undergo isomerization, where the position of the carbon-carbon bonds in the molecule is rearranged.
Cracking: Alkanes can be cracked, which means they are broken down into smaller molecules.
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Why didn't the early geologic time scale include the number of years ago that events happened?
Answers
Answer:
Paleontologists didn't have the technology in that time to get a good estimation on the events. Back then, they had to rely on natural sources "markers" that made the estimations. Those estimations weren't accurate. Today's measures are accurate.
Answer: Paleontologists didn't have the technology in that time to get a good estimation on the events. Back then, they had to rely on natural sources "markers" that made the estimations. Those estimations weren't accurate. Today's measures are accurate.
Explanation:
The ph level of fluid is low
Answers
pH indicates the level of H+ ions, where low pH indicates too many H+ ions and high pH. However, different body fluids have different pH values.
What does it mean if pH is low?pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water. Water that has more free hydrogen ions is acidic, whereas water that has more free hydroxyl ions is basic.
Low-pH water will corrode or dissolve metals and other substances. Pollution can change a water's pH, which in turn can harm animals and plants living in the water.
The abnormalities in acid-base balance are of two types: acidosis and alkalosis. In acidosis, the blood pH is low or there is too much acid in the blood, while in alkalosis, the blood pH is high or there is too much base in the blood.
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Identify the gender and phenotypes of Beatrice and Henry’s children.
Beatrice’s daughter, Eugenie, married Alfonso XIII of Spain. Identify the gender and phenotype of their children.
Based on the model, is hemophilia a dominant or recessive condition? Explain your reasoning.
Answers
Beatrice and Henry's children are both male and have the phenotype of hemophilia.
What are the symptoms of hemophilia?Hemophilia is usually an inherited bleeding disorder in which the blood does not clot properly. This can lead to spontaneous bleeding as well as bleeding following injuries or surgery.
Hemophilia is a rare, genetic blood disorder that happens when your blood doesn't clot and make your bleeding slow down or stop. Hemophilia happens when people don't have the normal amount of clotting factors.
It involves special proteins called coagulation, or clotting factors. You may have a higher chance of excess bleeding if one or more of these factors are missing or aren't functioning like they should.
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How do we conserve and protect biodiversity?
Answers
Protecting and conserving biodiversity is important because our life is an interconnecting web and has a domino effect if a certain species go extinct. Biodiversity is an important indicator that we have a healthy ecosystem.
We can protect and conserve biodiversity by preventing deforestation, proper utilization of resources, and preventing the poaching and hunting of animals mainly the wildlife because this might lead to extinction. The natural habitat of flora and fauna should remain protected. Humans should also practice discipline such as proper waste segregation because it will also affect our ecosystem.
If a man with blood type AB marries a woman who is heterozygous for blood type B, what is the probability of having a child with blood type O?
Answers
Considering the probabilities of these outcomes, the chance of having a child with blood type O is 50% if a man with blood type AB marries a woman who is heterozygous for blood type B.
To determine the probability of having a child with blood type O, we need to analyze the possible blood type combinations that can result from the parents' genotypes.
The man has blood type AB, which means he has both A and B antigens on his red blood cells. The woman is heterozygous for blood type B, meaning she carries one B allele and one recessive O allele. The possible genotypes for the man are AB (IAIB) and the possible genotypes for the woman are BB (IBIB) or BO (IBi).
When these two individuals have offspring, their children can inherit any combination of the parents' alleles. The possible combinations are as follows:
AB x BB: All children will have blood type B (IBIB), as both parents only carry the B allele.AB x BO: There is a 50% chance that each child will inherit the O allele from the mother, resulting in blood type O (ii). There is also a 50% chance that each child will inherit the B allele from the mother, resulting in blood type B (IBi).
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A researcher wants to examine the effect of fertilizer and the effect of sunlight on the yield of tomatoes. She bought 60 tomato plants at local garden store. She randomly assigned 30 tomato plants to be planted on the sunny side of the hill and 30 to be planted on the shady side. The 30 plants which are planted on the shady side are randomly assigned to one of three groups. The first group are grown with no fertilizer, the second group with a small amount of fertilizer, and the third group with a large amount of fertilizer. The 30 plants which are planted on the sunny side are likewise randomly assigned to one of three group. The first group are grown with no fertilizer, the second group with a small amount of fertilizer and the third group with a large amount of fertilizer. All tomato plants are planed at the same time and are all treated alike (in terms of how they are watered, weeded etc.). Each plant is grown to maturity. The total weight of tomatoes obtained from each plant is recorded. Identify the factor(s) and the number of levels for each. a) Sunny, shady (2 levels) b) No fertilizer, small amount of fertilizer, large amount of fertilizer (3 levels) c) No fertilizer and sunny, small amount of fertilizer and sunny, large amount of fertilizer and sunny, no fertilizer and shady, small amount of fertilizer and shady, large amount of fertilizer and shady (6 levels) d) Fertilizer (3 levels), location (2 levels) e) Fertilizer (3 levels), blocking variable – location (2 levels)
Answers
In this experiment, the fourth tomato plants—the group of tomatoes that do not get any fertilizers—serves as the control group.
Fertilizer is any substance, whether chemical or natural, applied to the soil with the intention of boosting productivity. Tomato groups behave as a reference group when fertilizer is added, whereas tomato groups that have no fertilizer added behave as a control group. The aforementioned description is true as a result. The group in which nothing is altered is known as the control group. To determine whether the changes you make in the experimental groups actually had an impact, use this as a foundation or baseline. In the absence of this, your experiment is worthless since there is no evidence that the adjustment you performed was the root cause of the result you observed.
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can someone please help me solve this
Answers
Answer:
One thing missing would be the units of the rates and measurments
The independent variable is the light intensity and the dependent is the rate of photosynthesis
Explanation:
In the absence of light we are able to see things.
True or False
Answers
Explanation:
False.
Light illuminates our surroundings which helps us to see.
Hope it helps =D
SOMEONE PLEASE HELP ME THIS IS DUE TONIGHT!!!! When the human body digests food, hydrolyzed carbohydrates that are produced move from the small intestine into the bloodstream. These hydrolyzed carbohydrate molecules are transported into the liver, where they are converted to glucose. The molecules of glucose are either stored in the form of glycogen or triglycerides or released back into the bloodstream for use by other body cells.
Two hormones regulate the levels of glucose in the blood - insulin and glucagon.
•When blood glucose levels are high (after eating; for example this signals the pancreas to secrete insulin. Insulin binds to receptors on body cells that allow cells to takeoff up glucose from the blood This action decreases blood glucose levels, as glucose leaves the blood and moves into cells
• When blood glucose levels are low after fast; for example), this signals the pancreas to secrete glucagon. Glucagon binds to receptors on liver cells that stimulate these cells to break down glycogen into glucose molecules and release them into the blood This action increases blood levels as glucose moves from its sto
rage location in liver cells into the blood
The graph below shows the changes in blood glucose levels in an individual over the course of day: It also shows the times when insulin and glucagon were secreted into the blood and the times that the individual ate meals
Evaluate the data shown to determine whether they demonstrate a negative feedback mechanism or a positive feedback system. Justify your conclusion.
Answers
In the given scenario, the regulation of blood glucose levels involves the hormones insulin and glucagon. This mechanism follows a negative feedback system.
When blood glucose levels are high, insulin is secreted, which allows cells to take up glucose from the blood, thus decreasing blood glucose levels. Conversely, when blood glucose levels are low, glucagon is secreted, stimulating the liver to break down glycogen into glucose and release it into the blood, increasing blood glucose levels.
When blood glucose levels deviate from the normal range, the body responds by secreting insulin or glucagon to bring the levels back to the normal range. The actions of insulin and glucagon are opposing and work to maintain the balance of blood glucose levels. As blood glucose levels increase, insulin is secreted to lower them, and as blood glucose levels decrease, glucagon is secreted to raise them. This feedback loop helps maintain homeostasis by keeping blood glucose levels within a certain range.
Therefore, the data demonstrate a negative feedback mechanism for the regulation of blood glucose levels.
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Substances that are poisonous are
considered
A. ignitable
B. corrosive
C. reactive
D. toxic
Answers
A woman is found to have 47 chromosomes, including three x chromosomes. which of the following describes her expected phenotype?
A enlarged genital structures B excessive emotional instability C normal female
D sterile E masculine characteristics such as facial hair
Answers
A woman who is found to have 47 chromosomes, including three X chromosomes would have C) normal female phenotype.
A woman who has 47 chromosomes, including three X chromosomes, would have a normal female phenotype. This is due to the fact that the two X chromosomes in the 47-chromosome count would be responsible for providing the genetic code for the female phenotype, while the remaining X chromosome could be either active or inactive.
This means that the woman would have the same physical characteristics associated with being female, such as reproductive organs, body shape, and the presence of secondary sex characteristics. In this case, the woman would have a normal female phenotype.
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What physiological alterations occur at both the vasculature and heart functioning level? (really stuck on this one, please help.)
Answers
Answer:
Most physiological alterations during aging and it is usually characterized by the deposition of a pigment called liposfuscin.
The valves of the heart also becomes stiff and thickened as a result of the pigment mentioned above. This makes the flow of blood slower than normal and contributes to cardiovascular diseases such as Stroke, high blood pressure etc.
Explain how a swinging bat has kinetic energy?
Kinetic energy can be found in all bats.
The bat is gaining kinetic energy from the air around it.
Any matter that is moving has kinetic energy.
The bat has stored energy that is now being release.
Answers
Answer:
Explanation:
D
In a diploid species of plant, the genes for plant height and fruit shape are syntenic and separated by 18 m.u. Allele D produces tall plants and is dominant to d for short plants, and allele R produces round fruit and is dominant to r for oval fruit. The expected percentages of progeny phenotypes are listed below:
tall oval = 41%
short round = 41%
tall round = 9%
short oval = 9%
(a) What proportion are expected to be tall and produce round fruit?
Answers
In a diploid plant species, the proportion of progeny expected to be tall and produce round fruit is 32%.
In a diploid species of plant, the genes for plant height and fruit shape are syntenic and separated by 18 m.u. The expected percentages of progeny phenotypes are tall oval = 41%, short round = 41%, tall round = 9%, and short oval = 9%.To determine the proportion of progeny expected to be tall and produce round fruit, we need to consider the alleles for each trait. Allele D produces tall plants (dominant) and allele d produces short plants (recessive). Allele R produces round fruit (dominant) and allele r produces oval fruit (recessive).From the given percentages, we can deduce that tall ovals and short ovals combined make up 9%. Since tall oval is 41% and short oval is 9%, the proportion of progeny expected to be tall and produce round fruit is 41% - 9% = 32%.Therefore, the proportion of progeny expected to be tall and produce round fruit is 32%.For more questions on diploid plant
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PLEASE HELP !!!
Sound is a vibration that travels through ______ . some types of matter are made of pieces too small to be seen, called _______ . molecules are the ______ pieces that matter can be broken into without changing the kind of matter. when a string vibrates, it makes molecules of gases in the air next to it _______ . a vibration that spreads away from a vibrating object is a _______ . it carries the energy from the vibrating object outward in all ______ . when sound waves reach your ______ , they make the parts inside vibrate. since air is a mixture of _______ , you may conclude that sound can travel through gases.
a.SOUND WAVE
b. SMALLEST
c. VIBRATE
d. MOLECULES
e. MATTER
f. GASES
g. DIRECTIONS
h. EAR
Answers
2. molecules (d)
3. smallest (b)
4. vibrate (c)
5. directions (g)
6. ear (h)
7. gases (f)
2. Soil horizons develop as a result of
A) evaporation and transpiration
B) compacting and cementing
C) weathering and biological activity
D) faulting and folding
Answers
C) Soil horizons develop as a result of weathering and biological activity.
What are Soil horizons?Soil horizons are the layers of soil that develop over time as a result of various physical, chemical, and biological processes.
Weathering, which is the physical and chemical breakdown of rocks and minerals, plays a key role in the formation of soil horizons. As rocks break down, they release minerals and nutrients into the soil, which can support plant growth.
Biological activity, including the actions of plants, animals, and microorganisms, also contributes to the formation of soil horizons. For example, plant roots can help break up rocks and create spaces in the soil for air and water to flow. Microorganisms can break down organic matter, releasing nutrients and creating pore spaces in the soil.
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A postsynaptic neuron has an RMP of -70mV and a typical threshold of -55mV. It has three presynaptic inputs-from neurons X, Y, and Z. Stimulation of
neuron X causes the postsynaptic neuron to depolarize by 0.5 mV. When X and Y are stimulated simultaneously, the postsynaptic neuron depolarizes by
1 mV, If X fires 10 times and Y fires 10 times the result will be …
Multiple Choice
a subthreshold summation.
presynaptic inhibition.
threshold is reached and an AP is fired.
many APs are fired.
the membrane depolarizes.
Answers
When X fires 10 times and Y fires 10 times, the result will be a subthreshold summation.
Subthreshold summation happens when two or more presynaptic inputs that are sub-threshold (i.e., they cannot create an action potential) combine their effects on the postsynaptic neuron.
Here, the postsynaptic neuron has an RMP of -70mV and a typical threshold of -55mV. When neuron X is stimulated, it depolarizes by 0.5 mV.
When X and Y are stimulated simultaneously, the postsynaptic neuron depolarizes by 1 mV, which is sub-threshold (below -55mV).
Therefore, when X fires 10 times and Y fires 10 times, the postsynaptic neuron will experience subthreshold summation and no action potential will be fired.
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Which of the following is an application for cloning and polymerase chain reaction (PCR) technologies?
A. Amplification of DNA fragments from a drop of semen at a crime scene
B. Analyzing the speed of enzymatic function in chemical reactions
C. Generating large quantities of insulin for use by diabetics
D. Measuring blood cholesterol levels in routine medical tests
Answers
Exp: Amplification of DNA fragments from a drop of semen at a crime scene is an application for cloning and polymerase chain reaction (PCR) technologies.
Answer: its A
Explanation: I took the test
please help!!
…………………….
Answers
Answer:
I think it is b but where is the map?
Explanation:
describe how impulse are transmitted across a synapse
Answers
A tiny electric message moves through a long part of a brain cell called the axon. When a message goes to the end of a nerve, it sends chemicals called neurotransmitters. These substances move through a tiny gap and attach to special parts of another nerve cell's outer covering.
What are the impulse?Messages called impulses are sent from one nerve cell to another through a connection called a synapse. This process is called synaptic transmission. Synapses are connections between nerve cells or between nerve cells and other cells, like muscles or glands.
The neuron sending the signal is called the presynaptic neuron. When a signal travels down a nerve cell, it causes little sacs called vesicles to release chemicals called neurotransmitters.
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Understanding the effects of alcohol will help me
Answers
The effects of alcohol are high blood pressure, heart disease, stroke, liver disease, and digestive problems.
What are the 5 effects of alcohol on the body?
High blood pressure, heart disease, stroke, liver disease, and digestive problems are the effects of alcohol. Cancer of the breast, mouth, throat, esophagus, voice box, liver, colon, and rectum also occur due to more consumption of alcohol. Weakening of the immune system, increasing the chances of getting sick, Learning and memory problems, dementia and poor school performance also the cause of alcohol.
So we can conclude that the effects of alcohol are high blood pressure, heart disease, stroke, liver disease, and digestive problems.
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Which three careers use technologies that apply the Doppler effect?
A. Doctor specializing in circulation
B. Military
C. Restaurant worker
D. Meteorologist
Answers
Answer:
Doctor specializing in circulation, meteorologist , military
Explanation:
The three careers that use technologies that apply the Doppler effect are: doctor specializing in circulation; military; and meteorologist, which are in options A, B, and D, respectively.
What is the Doppler effect?The Doppler effect is a phenomenon that occurs when there is a change in the frequency of a sound wave due to the relative motion between the source of the wave and the observer. The Doppler effect can also be observed with other types of waves, such as light waves, and is used in a variety of technologies to measure the speed, direction, and velocity of objects.
Hence, three careers that use technologies that apply the Doppler effect are: doctor specializing in circulation; military; and meteorologist, which are in options A, B, and D, respectively.
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What is a major drawback of using fossil fuels?
Answers
A major drawback of using fossil fuels is that they release large amounts of carbon dioxide and other greenhouse gases when burned, which contributes to climate change and global warming. Fossil fuel extraction, transportation, and combustion can also cause environmental pollution and harm to human health. Additionally, fossil fuels are finite resources, and their availability is becoming increasingly limited, leading to geopolitical tensions and conflicts.
Answer: They are harmful
Explanation:
Does anabolism belong in photosynthesis or cellular respiration?
Answers
Explanation: Anabolism is powered by catabolism, where large molecules are broken down into smaller parts and then used up in cellular respiration. Many anabolic processes are powered by the cleavage of adenosine triphosphate (ATP).
2
Select the correct answer.
Respiration is a process where many chemical bonds inside the body break and release energy. This energy is used to perform various activities such
as moving muscles. Explain the energy transformation in this process.
O
A.
Chemical energy from broken bonds is transformed into mechanical energy for muscles.
B. Mechanical energy from broken bonds is transformed into chemical energy for muscles.
C. Mechanical energy from broken bonds is transformed into electrical energy for muscles.
D. Heat energy from broken bonds is transformed into electrical energy for muscles.
Reset
Next
Answers
Respiration is a process where many chemical bonds inside the body break and release energy. This energy is used to perform various activities such as moving muscles. The energy transformation in this process option A.Chemical energy from broken bonds is transformed into mechanical energy for muscles.
Respiration is a complex metabolic process that occurs within living cells and involves the breakdown of glucose and other molecules to produce ATP. ATP is the primary energy currency of the cell, and it is used to power various cellular processes, including muscle contraction.
During respiration, the chemical bonds between the atoms in glucose and other molecules are broken down through a series of enzymatic reactions. These reactions release energy in the form of ATP. ATP is a high-energy molecule that can be used to fuel a variety of cellular processes, including muscle movement.
The energy transformation that occurs during respiration involves the conversion of chemical energy into mechanical energy. The chemical energy stored in the bonds of glucose and other molecules is released during the breakdown process and is used to generate ATP.
In summary, respiration involves the breakdown of chemical bonds in glucose and other molecules to produce ATP, which is used to power various cellular processes, including muscle contraction. The energy transformation that occurs during respiration involves the conversion of chemical energy into mechanical energy. The correct answer is option A.
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Conservation of Mass Activity Worksheet
Instructions: Observe and analyze the interactions between the substances pictured in the slide show. Compare the properties of substances before and after each interaction. You will submit your completed worksheet for grading.
Data Table
On the table below, record your observations before and after the interactions and explain how mass was conserved. Describe the changes in properties that prove a chemical reaction occurred. The first row is an example.
Observations Before Interaction Observations After Interaction How was mass conserved? Proof of a Chemical Reaction
Example: Sugar + Heat The sugar is in tiny white particles in a pile. Heat is not seen but is implied by the heat source. The pile of sugar in the pot has a mass of 100 grams. There is a solid, light brown mass at the bottom of the pot. It has a mass of 100 grams. The mass of the sugar is the same in melted form as it is in solid crystal form. There was not a chemical reaction. Sugar did not change composition. It only melted. Melting point is a physical property, and this is a physical change.
Steel Wool + Oxygen (Fire)
Egg + Heat
Water + Heat
Zinc + Hydrogen Chloride
Sodium Hydroxide + Copper Sulfate
HELPPPP PLEASEEEEEE
Answers
After Interaction How was mass conserved it is discussed below:
Steel Wool + Oxygen (Fire): chemical change
Egg + Heat: chemical change
Water + Heat: physical change.
Zinc + Hydrogen Chloride: chemical change
Sodium Hydroxide + Copper Sulfate: physical change
What is conservation of mass?According to the rule of conservation of mass, no atoms are lost or created during a chemical process. Instead, the atoms combine in various ways to generate products. This is why the number of atoms in each element in a balanced symbol equation is the same on both sides of the equation.
Steel Wool + Oxygen (Fire):The steel wool is a grayish color and has a rough surface. Oxygen is transparent It looks like a powder, and like if it was rusted steel wool but then broken apart and turned into a powder Well Iron oxide is 7 grams and steel wool combined is 7 grams so that the mass was conserved Yes, this is a chemical change because the steel wool rusted and rust is a chemical change, so iron oxide is cause because if a physical change.
Egg + Heat:The egg has a yellow yolk in the middle while there is some type of liquid at the border of the yolk, but it is clear, the heat is hot but transparent The egg turned into a delicious food called an omelet what was yolk staid as a liquid but got a tad harder, but the transparent border around it turned white It was conserved because the eggshell was 4 grams and the fried egg is 41 grams It is a chemical change because it results in the formation of new particles, and the chemical bonds break up and new ones are formed.
Water (H₂O) + Heat:The water is a clear liquid, while the heat is very hot but transparent The water turned into a type of oxygen -Water Vapor- If 5 g of water becomes a gas it becomes 5 g of water vapor. The mass of the liquid water is simply transferred into the mass of the newly formed water vapor. There was no chemical reaction because the water vapor can be turned back to water also it just changed from a liquid to a gas and did not change its composition. So, it is a physical change.
Zinc (Zn) + Hydrogen Chloride (HCl):Zinc: a white/silver metallic solid. Hydrogen chloride (dilute hydroelectric acid) a transparent, colorless liquid with a very low pH (acidic). Zinc "dissolved" in hydrogen chloride, while emitting a colorless gas. The liquid remains a colorless liquid, possibly still having a low pH from the unused acid. The colorless gas collected in a test tube gives a popping sound when ignited with a burning wooden splint, so it is not air embedded in the zinc, nor dissolved in hydroelectric acid. Well although the zinc chloride is 12 grams and not 15 the gas that was released was 3 grams and as we all know 3 + 12 is 15 so that the mass was conserved The production of a new substance (most probably hydrogen) from the reaction of the two reactants. When a few drops of the liquid product are evaporated on a watch glass, a white residue is left. When a few drops of the liquid hydroelectric acid are evaporated on a watch glass, there is no residue. This proves that a new product (hydrogen gas), (white powder, zinc chloride) is produced instead of zinc being physically dissolved in hydroelectric acid. So, it is a chemical change.
Sodium Hydroxide + Copper Sulfate-Sodium hydroxide is a turbid solution and copper sulfate is in form of bright blue crystals. When their solutions are mixed with each other, a pale blue precipitate of basic copper hydroxide & a solution of neutral salt sodium sulfate will be formed. The sodium hydroxide and the copper sulfate combined make a total of 67 grams and the product is split because the sodium sulfate is 47 grams and the copper hydroxide is 20 grams but all together it is still 67 grams so you could say that the mass was conserved. The proof of the reaction is the appearance of pale blue precipitates of basic copper hydroxide & a solution of neutral salt sodium sulfate. So, it is physical change.
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The cell membrane would be found on what type of cell?
Answers
Answer:
Cell membrane is found in all cells.
Answer: The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment.
Explanation:
. Animal cells simply have a cell membrane, Plant cells have a cell wall, as well as a cell membrane.
How do cnidarians in the medusa formmove through the water?A. the gastrovascular cavity fills with water and allowsthem to floatB. their tentacles spin causing a propeller motionC. the tentacles move along the ocean floor like feetD. water is brought into the gastrovascular cavity andthen expelled which propels them forward
Answers
The medusas (cnidarians) is a free-swimming form organism, that is able to move through the water by rhythmic muscular constractions of the bell part (jet propulsion) of their body. Therefore, the correct alternative is the one that says: D. water is brought into the gastrovascular cavity and then expe
Please help me out with this.
Answers
The cell wall protects the cell it acts like a barrier