plant roots grow in the direction of gravity. They are also exhibiting hydrotropism,which is a response to (A) water (B)gravity (C) chemicals (D) touch
Answers
Answer:
A
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Related Questions
What would happen to sleet if the colder air below the cloud were replaced with warm air?
(A) The temperature below the clouds does not affect the temperature of the precipitation falling.
(B) The sleet would change state to liquid water and would fall as rain drops from the sky.
(C) The warm air would keep the pellets in the same state, and they would continue to fall in a solid state.
(D) If the colder air were replaced with warm air, the sleet pellets would change to snowflakes in a solid state.
Answers
Answer:
(D) If the colder air were replaced with warm air, the sleet pellets would change to snowflakes in a solid state.
Answer:
B
Explanation:
Sickle cell anemia is passed from parent to offspring. Which condition causes changes that are inherited?
excessive exposure to sunlight
a Dracunculus medinensis parasitic infection
ovum (egg) exposure to radiation before fertilization
prolonged exposure to chemicals
Answers
Answer:
ovum (egg) exposure to radiation before fertilization
Explanation:
For a mutation to be inherited, it must affect the egg or sperm before the embryo is formed (fertilization). Radiation is a mutagen - it can cause mutations to the DNA and those could be inherited. The other options would only affect somatic cells (body, not egg or sperm) which are not passed on
Which is an example of homeostasis? *
A snake's blood is the same temperature in hot weather and in cold weather.
A turtle sits in the sun on warm days and in the shade in cool days.
O A polar bear catches its prey with its front paws.
A human sweats in hot weather and shivers in cold weather.
Answers
Answer:
A
Explanation:
Homeostasis is the maintaining of internal conditions. Answer A is correct because it is maintaining internal conditions which is the blood temperature.
ILL GIVE U BRAINLIEST IF YOU DO THIS
Discussion 4.3: Preventing Heart Disease
Heart disease is generally caused by a mix of genetics and poor lifestyle factors such as high stress, poor diet, and lack of exercise. What can you do to prevent heart attacks, high blood pressure, and high cholesterol?
Answers
Answer:
Live a healthy lifestyle and avoid anything that may trigger such Diseases.
what formations would most likely be found at the boundary between the nazca plate and the pacific plate? select two answers A. Earthquakes B. mid-ocean trench C. Ocean trench D. Mountain building
Answers
Answer:
D
Explanation:
because the plates make mountains
Once you estimate the frequency of the recessive 'non-smelly' allele in the population, how can you estimate the frequency of the dominant allele
Answers
Answer:
ExplanationI have no clue.
hello please help i’ll give brainliest
Answers
Answer:
sunlight ofc
Explanation:
its simple
Answer:
Sunlight
Explanation:
The taller the plant, the more sunlight it will accumulate.
1. the 2nd portion (5' long) of small intestine that means to empty is the:
Answers
The 2nd portion (5' long) of small intestine that means to empty is the jejunum.
The small intestine, also known as the small bowel, is an organ inside the gastrointestinal tract that is responsible for the majority of nutrient absorption from food. It is located between the stomach and the large intestine and receives bile as well as pancreatic juice via the bile ducts to aid in digestion.
The small intestine is divided into three sections: the duodenum, the jejunum, and the ileum. The duodenum, the shortest, is where absorption preparation begins with small finger-like protrusions called villi.
The jejunum is specialised for enterocyte absorption through its lining of small nutrient particles digested by enzymes with in duodenum. The ileum's primary function is to absorb vitamin B12, bile salts, as well as any digestive products that were not absorbed by the jejunum.
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How is antibiotic resistance related to natural selection?
Answers
Answer:
Antibiotic resistance is a consequence of evolution via natural selection. The antibiotic action is an environmental pressure; those bacteria which have a mutation allowing them to survive will live on to reproduce. They will then pass this trait to their offspring, which will be a fully resistant generation.
Hope this helps out.
Explanation:
Which of the following best describes three of the known cause of foodborne illness?
Answers
The following which best describes the three known cause of foodborne illness include the following:
Poor handwashing.Food contaminationLack of temperature control.What is Food borne illness?This is referred to a type of illness which is caused when food substances are consumed as a result of their contamination by different microbes such as bacteria etc.
Poor hand washing causes this type of illness because the germs in the hands come in contact with the food thereby resulting in it being eaten and then causing problems in the body.
Another cause of foodborne illness is lack of temperature control due to the fact that some food favor the growth of microbes when they aren't stored under the right temperature. This is the reason why refrigerators are used to store food so as to inhibit the growth of bacteria and prevent it from spoiling.
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What happens to carbon in plants when the plants die?(1 point)
The carbon is not released; it is lost.
The carbon will be released into the soil for use by the next generation.
The carbon is released into the air.
The carbon is released into the soil, but it is not used again.
Answers
Answer:
The carbon will be released into the soil for use by the next generation.
Explanation:
I finished the quiz and this was the correct answer.
When the plants die in that case the plants will die and the carbon from the body of the plants gets displaced in the soil. This is the end cycle of the nutrients of plants.
What is the location of carbon in plants ?It is the carbon compounds with the glucose containing the 6 number of carbons and the sugars containing total in 5 numbers of carbons.
As the plants gets the soil there body gets decomposed into the soil and later on the carbon that is absorbed from the atmosphere is given back to the soil and later on they together make the energy sources of carbon in the form of fossils which can be demonstrated later on as well.
And after plants get died, they get decayed by releasing carbon to atmosphere. The difference in the amount of carbon plants get absorbed and they do release is known as the net primary productivity. It is the direct measurement of the amount of how much plant matter is from the crops to the forests or ocean phytoplankton by the Earth produces.
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why is there a difference between the amount of atp produced by glucose and by glycogen?
Answers
During the energy investment phase, less ATP is needed for glycogen breakdown. It is utilised during prolonged, high-intensity isometric muscular action.
Only two ATP molecules are produced per glucose molecule, which is 19 times less than the glucose molecule's total energy potential, making it inefficient from an energetic standpoint. During exercise, ATP can be created for a longer period of time thanks to the existence of glycogen in muscle cells as a source of glucose. During glycolysis, the majority of other carbohydrates pass through the cellular respiration pathway. For instance, sucrose is a disaccharide produced from the covalent bonding of glucose and fructose. Food or energy can be stored as glycogen. It can be converted into ATP molecules when needed.
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In 3 to 5 sentences, describe the relationship between a glucose molecule and the products it makes during cellular respiration
Answers
Answer:
Give me brailest
Explanation:
I needs itss
reduction of expression of a gene in fruit flies during early development causes the reduction of the anterior structures of one thoracic segment. what type of gene is it most likely to be? maternal effect gap segment polarity pair rule muller
Answers
The reduction of expression of a gene in fruit flies during early development, which causes the reduction of anterior structures of one thoracic segment, is most likely a gap gene.
Gap genes are essential during the early stages of development, as they help establish the anterior-posterior body axis in fruit flies (Drosophila melanogaster) by defining broad regions of the embryo. The altered expression of these genes can lead to the absence or reduction of specific body segments.
Maternal effect genes, though involved in early development, primarily influence the formation of the initial polarity of the embryo. Segment polarity genes are responsible for refining the segmented pattern, while pair rule genes create the repeating pattern of body segments.
Muller's genes refer to a different concept, which are the major chromosomes in Drosophila.
In summary, the gene most likely to be responsible for the observed reduction in anterior structures of one thoracic segment in fruit flies during early development is a gap gene. These genes play a crucial role in defining broad regions of the embryo and setting up the anterior-posterior body axis.
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Compare and contrast the differences among EPROM, EEPROM and
flash memory. (9 marks)
(c) Compare and contrast the differences among EPROM, EEPROM and flash memory. (9 marks)
Answers
EPROM (Erasable Programmable Read-Only Memory) is a non-volatile storage device that holds its data even after the power is turned off. EPROM chips must be erased in entirety before they can be reprogrammed, and the erasing process can only be done under ultraviolet (UV) light.
EEPROM (Electrically Erasable Programmable Read-Only Memory) is a non-volatile memory that can be electrically erased in small blocks. EEPROM can be rewritten more than 100,000 times and doesn't require UV light for erasing. Flash Memory is a non-volatile storage medium that can be electrically erased and reprogrammed in chunks or pages. Flash memory is quicker to erase and write than EEPROM. Flash memory is widely used in portable devices, such as digital cameras, cellphones, and USB flash drives, among other things.
There are several differences among these three types of memory, which are outlined below:EPROM is a non-volatile memory that can be programmed only once, whereas EEPROM can be electrically erased and rewritten.EEPROM is simpler to erase and rewrite than EPROM, and it doesn't require UV light.EEPROM is faster than EPROM because it doesn't need to be completely erased before new data can be programmed.Flash memory is a non-volatile storage medium that can be programmed in blocks.Flash memory is faster to write and erase than EEPROM.
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stress-induced sympathetic stimulation of the adrenal medulla causes the secretion of catecholamines, which include:
Answers
The stress-induced sympathetic stimulation of the adrenal medulla causes the secretion of catecholamines which include Epinephrine and norepinephrine.
The adrenal medulla secretes catecholamines hormones that help the body respond to stress. Catecholamines include epinephrine and norepinephrine, also known as epinephrine and norepinephrine. Under stress, the adrenal glands respond quickly by increasing the secretion of glucocorticoids and catecholamines into circulation.
These hormones in turn affect metabolism supplying energy to the vascular system to raise blood pressure and prevent the immune system from becoming over-activated. Visceral stimulation is the physiological stimulation of catecholamine secretion. Her ACh is released from nerve endings in the adrenal medulla when splanchnic nerves are stimulated.
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Sympathetic stimulation by stress in the adrenal medulla causes the secretion of the catecholamines epinephrine and norepinephrine.
A type of neurohormone (a chemical substance made by nerve cells and used to send signals to other cells). Catecholamines are important in stress responses. High levels can cause high blood pressure, headaches, sweating, heart palpitations, chest pain, and anxiety. Epinephrine is also known as adrenaline.
A catecholamine test measures the amount of these hormones in the urine or blood. Higher than normal levels of dopamine, norepinephrine, and/or epinephrine can be signs of a serious health condition.
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Which of these can be found in a plant cell but not in an animal cell?
Answers
Answer:
chloroplast
Explanation:
chloroplast helps in the presence ofsunlight to aid photosynthesis
food and territory are balancing factors in an ecosystem what type of phenomena balance these factors
Answers
Answer:
uhh either natural and reproductive pretty sure it's reproductive
Homeostasis can require the control of many different variables in organisms. Homeostasis regarding internal body temperature is very important for many organisms. How is this different among ectotherms and endotherms?
Answers
Answer:
The term homeostasis refers to balance, where an organism seeks to maintain the balance of the temperature of its organism in order to persist in life.
There are organisms that are considered ectotherms, with which they release heat to the external environment in order to balance said increase in temperature and not denature their own proteins (such as enzymes, structural proteins, receptors, second messengers, etc.). On the other hand, in the case of endotherms, take energy from the medium to increase your body temperature and maintain it, since otherwise you could enter hypothermia.
In the human organism these principles occur both, not simultaneously, but according to the external temperature in which the human is, ectothermic / catabolic processes in heat stages and endothermic or anabolic processes in the cold stage.
Explanation:
In simple words, endotherm is the heat taken from the medium and exotherm or ectotherm is the release of heat to the medium.
This is so simple in objects, but in living organisms these processes have a reason, and that is why we explained above, when looking for a constant temperature these processes are responsible for mediating balance.
A study by Bechtel et al., 2009, described in the Archives of Environmental \& Occupational Health considered polycyclic aromatic hydrocarbons and immune system function in beef cattle. Some cattle were near major oil-and gas-producing areas of western Canada. The mean monthly exposure to PM1.0 (particulate matter that is <1μm in diameter) was approximately 7.2μg/m 3
with standard deviation 1.5. Assume that the monthly exposure is normally distributed, What is the probability of a monthly exposure greater than 9μgm 3
? Round your answer to three decimal places (e.8. 98.765 ).
Answers
The probability of a monthly exposure to PM1.0 greater than 9μg/m3 is approximately 0.091.
To calculate the probability, we need to standardize the value of 9μg/m3 using the given mean and standard deviation. The formula for standardization is z = (x - μ) / σ, where z is the standardized value, x is the observed value, μ is the mean, and σ is the standard deviation.
In this case, the mean (μ) is 7.2μg/m3 and the standard deviation (σ) is 1.5μg/m3. Plugging these values into the formula, we get z = (9 - 7.2) / 1.5 = 1.2 / 1.5 = 0.8.
Now, we need to find the probability of a z-score greater than 0.8. Using a standard normal distribution table or calculator, we can determine that the area to the left of 0.8 is approximately 0.7881. Therefore, the probability of a z-score greater than 0.8 is 1 - 0.7881 = 0.2119.
So, the probability of a monthly exposure greater than 9μg/m3 is approximately 0.2119, which can be rounded to 0.091 when expressed as a percentage.
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If a child inherits one dominant allele from one of their parents regadless of the other allele; this will most often result in?
Either recessive or dominant trait.
Not sure, the other allele is needed to determine.
The dominant trait expressed.
The recessive trait expressed.
Answers
Answer:
The dominant trait expressed
Explanation:
For a recessive trait to be expressed, most often you require 2 recessive alleles to show the trait however if there is 2 dominant or 1 dominant and 1 recessive allele, most often the dominant trait will show. You can also look up the punnett square for more information on how this works in practice when looking at alleles.
I don't know if I should be able to get the answer then I saw ok
The Celsius scale is primarily used in climate studies and industry.
True or False
Answers
The metric system is the international measurement system. When it comes to temperature, the unit used is known as Celsius.
Meters, kilometres, and litres are some other common units in the metric system.
The Celsius scale is widely used wherever the metric system of units is used, and it is widely used in scientific work.
Celsius measured the boiling point of water at 0° and the melting point of snow at 100°.
The Celsius scale (originally known as the centigrade scale outside Sweden) is one of two temperature scales used in the International System of Units (SI), the other being the Kelvin scale.
Examples. Water freezes at 0° Celsius and boils at 100° Celsius. The temperature in the room is around 20 degrees Celsius.
Absolute zero (the coldest temperature possible) is -273.15 °C.
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Which biological property of a pathogen could block the successful design of an effective vaccine? Group of answer choices
Expresses one immunodominant antigen shared amongst all strains
Has high antigenic variation through increased mutation rates
Lack of infrastructure required to transport and store vaccines
Stimulates robust immune memory response
Answers
High antigenic variation through increased mutation rates. The biological property of a pathogen that could block the successful design of an effective vaccine is having a high antigenic variation through increased mutation rates.
Antigenic variation is a biological property of pathogens that involves changes in their antigenic structure, and it could block the successful design of an effective vaccine. Increased mutation rates cause the emergence of new antigenic variants that are different from previously existing ones. This makes it challenging to design a vaccine that targets all the existing antigenic variants, particularly if they are continually emerging or evolving. This means that even if an effective vaccine is intended for a particular variant, it may not be effective against other variants, limiting its efficacy.
Antigenic variation is common in RNA viruses like influenza viruses, human immunodeficiency virus (HIV), and coronaviruses like SARS-CoV-2, which causes COVID-19. The influenza virus has a high mutation rate, which explains why people need to get vaccinated annually because the vaccine efficacy reduces due to the emergence of new strains. HIV also undergoes antigenic variation, which makes it challenging to design a vaccine that targets all existing strains.
In conclusion, the high antigenic variation through increased mutation rates is a biological property of pathogens that could block the successful design of an effective vaccine.
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what feature listed not part of the groundwater system?
A-confined water
B-underwater spring
C-lake
Answers
Answer: Lake
Explanation:
The end result of the formation of the female gamete is? A. The formation of 4 daughter cells identical to the mother. B. An ootid and 3 disintegrating polar bodies. C. 4 identical haploid cells. D. 2 daughter cells identical to the mother.
Answers
Answer:
C
Explanation:
bc i did it and got it correct:)
This autoimmune disease occurs when the immune system attacks the gastrointestinal tract, specifically the terminal ileum, which becomes inflamed during periods of flare-up. The common name for this disorder is
Answers
Crohn's disease is an autoimmune disease that occurs when the immune system attacks the gastrointestinal tract, specifically the terminal ileum, which becomes inflamed during periods of flare-up.
What is Crohn's disease?
The autoimmune disease you're referring to, in which the immune system attacks the gastrointestinal tract, specifically the terminal ileum, causing inflammation during flare-ups, is commonly known as Crohn's disease. It is characterized by chronic inflammation in the digestive tract and can lead to a variety of symptoms, including abdominal pain, diarrhea, and weight loss.
The immune system mistakenly attacks the lining of the digestive tract, causing damage and inflammation. Over time, this can lead to complications and a weakened immune system, as well as an increased risk of other illnesses. Treatments for Crohn's disease focus on reducing inflammation and managing symptoms, as well as boosting immunity to prevent further damage.
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10)
What is the global weather phenomenon characterized by unusually cold ocean temperatures in the Equatorial Pacific?
A)
La Niño
B)
El Niña
C
La Niña
El Niño
Answers
HELP What pattern of inheritance is shown?
Answers
Answer:
I'm not sure sorry what type of question Is it?
Can someone help pleasee!!!
Answers
Answer:
Its probably a pine tree. with the characteristics
Explanation:
Question 3
When dissolved in water, many bases release which of the following particles?
Select one:
a. Htions
lil
b. H2 molecules
C. (OH) ions
DE
d. O molecules
CLE
Answers
Bases release OH- ions in solutions, whereas Acids release H+ ions in solutions