The cell membrane is like a security guard or tent, because the cell membrane controls what goes in and out of a cell. Cell wall supports and protects the cell while still letting materials pass through it.
What can cell membranes be compared to in real life?The cell membrane controls what goes in and out of the cell. The cell membrane is like a screen door, because a screen door holds things out but lets air in.
A kitchen in a house is comparable to a cell membrane in that they both distinguish that space from every other room in the building. Because they actually prepare the food using appliances like stoves and toasters, chefs are like ribosomes.
Cell walls and membranes vary in that only plants have cell walls, whereas all living things, including plants, have cell membranes. Only found in plants and a few types of bacteria, fungus, and algae. accessible in all cellular types.
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The lac repressor binds to what site within the lac operon?.
The lac repressor binds to the operator site within the lac operon. The lac operon is a cluster of genes in bacteria that are responsible for the metabolism of lactose.
The operon is composed of three structural genes, lacZ, lacY, and lacA, and a regulatory region that includes the promoter and operator. The lac repressor is a protein that binds to the operator site and prevents RNA polymerase from binding to the promoter, thereby inhibiting transcription of the structural genes.
When lactose is present, it binds to the repressor and changes its shape, causing it to release its grip on the operator, allowing RNA polymerase to bind to the promoter and transcribe the structural genes. The binding of the lac repressor to the operator site is critical for the regulation of the lac operon.
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The thread connecting the LAC (Limits of Acceptable Change) and VERP (Visitor Experience and Resource Protection) planning paradigms is the need to manage increasing visitation and related visitor impacts in wilderness areas.
Both planning paradigms were developed to help recreation planners and wilderness area managers address the challenges posed by growing visitor numbers.The LAC planning paradigm focuses on setting specific limits for visitor use and establishing management actions to maintain or restore desired conditions in the wilderness. It involves a systematic process of assessing visitor impacts and determining acceptable levels of change, based on ecological, social, and managerial factors. The goal is to strike a balance between visitor use and the preservation of wilderness resources and values.On the other hand,
VERP planning paradigm emphasizes managing visitor experiences while protecting the natural and cultural resources of wilderness areas. It aims to ensure that visitors have high-quality and sustainable experiences in the wilderness, while minimizing negative impacts on the environment and other visitors. VERP involves monitoring visitor use and impacts, developing strategies to manage visitor capacity, and implementing actions to protect resources and enhance visitor experiences.
In summary, the common thread between LAC and VERP planning paradigms is the recognition of the need to effectively manage increasing visitation and related impacts in wilderness areas. Both paradigms provide frameworks and tools to help recreation planners and wilderness area managers strike a balance between visitor use and the protection of natural and cultural resources.
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*In addition to the bacterial, virus, fungus, some microorganisms live under the sea*what are they?
A microorganism (or microbe) is any microscopic living organism or virus, that is too small to see with the unaided human eye without magnification. Microorganisms are very diverse. They can be single-celled or multicellular and include bacteria, archaea, viruses and most protozoa, as well as some fungi, algae, and animals, such as rotifers and copepods. Many macroscopic animals and plants have microscopic juvenile stages. Some microbiologists also classify biologically active entities such as viruses and viroids as microorganisms, but others consider these as non-living.
PLEASE HELP 40 POINTS!!! I WOULD REALLY APPRIEACTE IT AND YOU CAN ANSWER ON THIS TWIcE I PUT THIS QUESTION BEFORE FOR 50 POINTS PLS
In the anatomical position the face and palms are on the?
In the anatomical position the face and palms are on the anterior of the body.
Anatomical position is a typical position that the body uses as a guide. When a person is standing straight up with their feet together and their hands by their sides with the palms facing front, they are said to be in anatomical stance. In the anatomical posture, the buttocks and shoulder blades are on the posterior body surfaces, while the face and palms are on the anterior body surfaces.
Superior, inferior, anterior, posterior, medial, and lateral are the primary directions for body components, whereas proximal and distal are better phrases to describe limbs. The human body is standing upright and at rest in the usual anatomical stance. The limbs are put in postures evocative of the supine position forced on cadavers during autopsy, which is different from the condition in other vertebrates.
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If the government does not protect the common good of the people who said that the people have the right to overthrow the government?
Some political theorists, such as John Locke, argue that if the government fails to protect the common good of the people, the people have the right to overthrow the government.
According to John Locke's theory of social contract, governments are formed to protect the natural rights and promote the common good of the people. If a government fails to fulfill its obligations and becomes tyrannical or oppressive, it violates the social contract. In such cases, Locke argues that the people have the right to revolt and establish a new government that will better serve their interests and protect their rights. This idea is based on the belief that the legitimacy of a government comes from the consent and trust of the governed, and if that trust is violated, the people have the right to seek change.
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Five ways humans impact the environment are deforestation, desertification, Non-native species, and overharvesting.
Now pick 3 of them and discuss the causes and consequences of them!
ill be marking brainliest
Answer:
hope you help
Explanation:
The loss of trees and other vegetation can cause climate change, desertification, soil erosion, fewer crops, flooding, increased greenhouse gases in the atmosphere, and a host of problems for indigenous people.
Answer: deforestation
Explanation: cutting down of trees without replacement leads to desertification
Anaerobic respiration occurs in absence of oxygen and lactic acid fermentation occurs in lack of oxygen, so, why lactic acid fermentation is a type of anaerobic respiration?
Fermentation of lactic acid occurs when cells make ATP without having a supply of oxygen.
Oxygen abundance permits aerobic respiration to proceed. This permits glucose to be totally oxidized to produce an abundance of energy. In contrast, when oxygen is low, cells switch to a significantly less efficient type of energy production. This process is called anaerobic respiration.
Glycolysis is the first step in the fermentation process, but fermentation does not involve the second and third stages of aerobic cellular respiration (the Krebs cycle and oxidative phosphorylation). Glycolysis results in the production of two additional ATP molecules on top of the reduction of two NAD+ electron carriers into two NADH molecules. It is important that NADH be oxidized once more so that glycolysis may proceed and cells can keep producing two copies of ATP. Due to the absence of oxygen, the cells are unable to undergo oxidative phosphorylation, which prevents them from producing more than two ATP during the fermentation process.
There are two different kinds of fermentation: alcoholic fermentation and lactic acid fermentation. Only the fermentation of lactic acid can take place within our cells. The pyruvate produced by glycolysis is converted to lactic acid in the process of lactic acid fermentation in the absence of oxygen.
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Arrange the steps of the scientific method in the correct order.
Ask questions.
Test the hypothesis.
Observe.
Construct a hypothesis.
Communicate the results.
Analyze the results and conclude.
↓
The correct order of the steps of the scientific methods is Ask questions, Conduct background research, Construct a hypothesis, Test the hypothesis, Analyze the results, Draw conclusions, and Communicate the results.
Ask questions: The scientific method begins with the formulation of a question or a problem that you want to investigate.Conduct background research: Before constructing a hypothesis, it is important to gather information and conduct research to understand existing knowledge and theories related to the question or problem.Construct a hypothesis: A hypothesis is an educated guess or a proposed explanation for the question or problem. It should be based on the background research and provide a testable prediction.Test the hypothesis: This step involves designing and conducting experiments or making observations to gather data that will either support or refute the hypothesis.Analyze the results: Once data is collected, it needs to be analyzed using appropriate statistical or analytical methods to identify patterns, trends, or relationships.Draw conclusions: Based on the analysis of the results, conclusions are drawn to determine whether the data supports or refutes the hypothesis. This step involves interpreting the findings and discussing their implications.Communicate the results: The final step involves sharing the findings with the scientific community and the public through oral presentations, scientific papers, or other means. This step allows for peer review, replication of the study, and further discussion among scientists.know more about hypothesis here:
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If three out of four Cubs from the cross had sandy-colored fur, the allele for sandy-colored fur was? -dominant. -recessive. -monohybrid. -heterozygous. -dihybrid.
What do you think would happen if all inertia disappeared from our solar
system?
Answer:
The planets could either stop moving, or accelerate to a drastic speed.
Q1.
Table 1 shows information about some food components in cow’s milk.
Table 1
Recommended Daily Allowance (RDA) for a typical adult Energy in kJ 1046 8700
Fat in g 8.4 70.0
Salt in g 0.5 6.0
Calcium in mg 605 1000
Vitamin B-12 in μg 4.5 2.4
(a) How much more milk would a typical adult have to drink to get their RDA for calcium compared with the amount of milk needed to get their RDA for vitamin B-12?
Please show workings
A typical adult would have to drink 566.6 cm³ more milk to get their RDA for calcium compared with the amount of milk needed to get their RDA for vitamin B-12
What volume of milk is needed to meet the Recommended Daily Allowance for Calcium and Vitamin B-12?The volume of milk needed to meet the Recommended Daily Allowance for Calcium and Vitamin B-12 is calculated as follows:
RDA for calcium = 1000 mg
500 cm³ of milk contains 600 mg
Volume of milk required for RDA calcium = 1000 * 500 / 600
Volume of milk required for RDA calcium = 833.3 cm³
RDA for Vitamin B-12 = 2.4 µg
500 cm³ of milk contains 4.5 µg
Volume of milk required for RDA Vitamin B-12 = 2.4 * 500 / 4.5
Volume of milk required for RDA Vitamin B-12 = 266.7 cm³
Difference between the Volume of milk required for RDA calcium and RDA Vitamin B-12 = 833.3 cm³ - 266.7 cm³ = 566.6 cm³
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why is the plant cell found in the leaves???
Answer:
That's where they get their photosynthesis, using the chloroplasts.
Explanation:
Which of the following are viruses unable to infect?
Answer:
non living things
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When it is winter in North America, it is summer in South America. Explain why this happens. Read the assignment carefully and make sure you answer each part of the question or questions. After you've written your response, go back and read it again to make sure your thoughts are clear.
Answer:
It is also important to remember that the seasons in South America are the reverse of that in the Northern Hemisphere, meaning that summer falls between December and February and winter between June and August.
The further north you are on the continent, the closer you are to the Equator (the country, of course, but also the Equator line). The temperature variations between the different months of the year are therefore smaller and smaller as you go up. In other words, each seasons of South America depends on its country.
how are selective media used in studying bacterial recombination? select the two correct statements. how are selective media used in studying bacterial recombination?select the two correct statements. selective media can be used to identify bacteria that have acquired a resistance gene and are recombinant. selective media can be used to identify bacteria that contain a free or integrated f plasmid. selective media can be used to identify bacteria that have a mutation in a metabolic pathway by looking for mutants that are unable to complete normal metabolic processes. selective media can be used to identify bacteria that have a mutation associated with in flagellum proteins or proteins involved in flagellum movements by looking for mutants that are unable to move. selective media can be used to supply rare nutritional ingredients to the recombinant bacteria.
The correct statements about selective media are:
Selective media is used to identify bacteria that have a resistance gene and are also recombinant.Selective media is used to identify bacteria that have a mutation in a metabolic pathway by looking for mutants that are not able to complete normal metabolic processes.Recombinants are the host cells that have been integrated with a gene of interest from an outside source. These recombinants may either clone the genetic material or produce the product from it in the form of proteins.
Mutation is any change in the normal genetic sequence of DNA. The mutation can be in a single nucleotide or at a stretch of various nucleotides. These are termed as point and frameshift mutations respectively.
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Jasmine is a healthy girl who is playing outside. Her internal body temperature rises to 38 degrees Celsius, which is above normal. How does her body most likely respond to help her return to homeostasis?
Answer:
See the answer below
Explanation:
Jasmine's body would help her return to homeostasis by using the negative feedback loop.
The negative feedback loop works to negate the process or processes that lead to the body's setpoint being breached. The setpoint refers to the normal range of operation of body processes such as temperature, pressure, etc.
The skin of Jasmine acts as a sensor and sends information to the control center, the brain. The brain reads the temperature data, finds out that the setpoint has been exceeded, and sends information to the effectors to initiate processes that will return Jasmine's body temperature to normal.
One of the effectors, the blood vessels that supply blood to the skin becomes dilated. Consequently, more blood is supplied to the skin and more heat is lost from the skin due to radiation - blood being a conductor of heat in the body. Another effector, the sweat glands, release sweat to the skin. The evaporation of sweat from the surface of the skin causes the body to cool down. These processes work synergistically to return the body temperature of Jasmine back to homeostasis.
Answer:
By Sweating
Explanation:
If a potato has a 35% chance of passing on brown skin with few eyes and a 10% chance of passing on brown skin with large leaves. Which traits are farther apart on the chromosomes
The traits that are farther apart on the chromosomes are brown skin and large leaves of potatoes.
If a potato has a 35% chance of passing on brown skin with few eyes and a 10% chance of passing on brown skin with large leaves, the traits that are farther apart on the chromosomes are brown skin and large leaves. Brown skin is inherited via the chromosome responsible for skin pigmentation and large leaves are determined by a separate set of genes, thus these traits are farther apart on the chromosomes. Brown skin and few eyes, on the other hand, are closely linked on the chromosome and are inherited together frequently. Therefore, these two traits are located closer together on the chromosome.On the other hand, brown skin and large leaves are considered to be located farther apart on the chromosome. The 10% chance of passing on brown skin with large leaves indicates that these traits are not inherited together as frequently as brown skin with few eyes. This suggests that the genes responsible for brown skin and large leaves are located on different regions of the chromosome and are further apart.
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Use your knowledge of science to answer the questionSelect the three correct answers
They give us the following statements
A) Glucose is broken down into carbon dioxide and water.
This statement would be correct if we are talking about cell respiration because glucose and oxygen produce carbon dioxide, water, and energy in that reaction.
B) Energy is stored in the bonds of ATP.
Which statement is true about allele frequencies in a population?
Question 4 options:
The frequency of two alleles for a single trait add up to 1
Lethal alleles are quickly removed from populations
The frequency of alleles for one trait (such as hair color) helps determine the frequency of other trait alleles (such as number of fingers)
The frequency of dominant alleles is always greater than the frequency of recessive alleles
Answer:
the 2nd and 1st statement is correct about frequencies in a population
Answer:
The frequency of two alleles for a single trait add up to 1
Explanation:
I just took the quiz!
why are commercial greenhouses use heaters on cold days?
Answer:
Heat is often used in greenhouses and makes plant growth possible when the weather is cold outside. Increased temperatures in greenhouses increase the rate of photosynthesis. Temperature regulation is important – note that cooling may also be required.
Explanation:
QUESTION: What are the building blocks of all organisms?
ANSWER:
Answer:
Cells
Explanation:
Answer:
Cells
Explanation:
Organisms are created by different types of tissues. These are composed of cells. Animals are made of animal cells which are round, and plants are made of plant cells which are rectangular and have cell walls.
what substance needs to meet the following criteria: ability to contain the information necessary to construct an entire organism; ability to be passed from parents to offspring; ability to be replicated; contains variation?
Genetic material is the substance needed to meet the following criteria: ability to contain the information necessary to construct an entire organism; ability to be passed from parents to offspring; ability to be replicated; contains variation.
Three criteria are required for the genetic material to perform its function. There are three of them: information, variation, and replication.
The fundamental requirements for genetic material (the material that determines an organism's inherited characteristics): It must be stable, capable of being expressed when needed, accurate in replication, and unchanged from parent to progeny.
The DNA double helix's stability is primarily determined by two factors: base pairing between complementary strands and stacking between adjacent bases.
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How has the desert landscape of the Sahara influenced historical migration patterns in Africa?
a. The Sahara Desert has facilitated the spread of disease in Africa.
b. The Sahara Desert has attracted migrants to the area to herd cattle.
c. The Sahara Desert has served as a barrier to travel and migration.
d. The Sahara Desert has served as a highway for immigrants leaving Africa.
Explanation:
How has the desert landscape of the Sahara influenced historical migration patterns in Africa?
b. The Sahara Desert has attracted migrants to the area to herd cattle.
How does the paradise flycatcher protect its young from predators?
It wraps its wings around its chicks.
It puffs out its feathers to look bigger.
It builds a camouflaged nest.
It builds an underground burrow.
Answer:
C is your answer
Answer:
cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
Explanation:
if you didnt get that its c
Part 2
1. Go to Phet Reversible Reactions Simulation (click here).
2. Add in 5 of each A and B molecules
3. After observing for 10 seconds, what is happeningto both the A and B molecules? Other
observations?
It is observed that after adding 5 each to molecules A and B; of Phet Reversible Reactions that the equilibrium goes right, away from the reactant
However, on the other side, If we add product, equilibrium goes left, away from the product
This is because in reversible reactions, both forward and backward or reverse directions of the reaction usually occur at the same time.
What are reversible reactions?Reversible reactions can be defined as a type of chemical reaction in which the reactants form the products that; and in turn, react together to give the reactants back.
Generally, reversible reactions usually will reach an equilibrium point where the concentrations of the reactants and products will no longer change.
Please note that the " Phet " mentioned above means Physics Education Technology. It is a research based simulations for tutoring science subjects
So therefore, it is observed that after adding 5 each to molecules A and B; of Phet Reversible Reactions that the equilibrium goes right, away from the reactant
Complete question:
What happens when you add 5 each to molecules A and B in a reversible reaction?
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How many amino acids are found in living organisms?
Answer: There are 20 different amino acids found in living organisms.
Explanation:
Which hormone functions to maintain pregnancy in mammals?
The hormone that functions to maintain pregnancy in mammals is progesterone. Progesterone is produced by the corpus luteum in the ovary after ovulation and helps to prepare the uterus for implantation of the fertilized egg. During pregnancy, progesterone is produced by the placenta to maintain the pregnancy and to prevent the uterus from contracting and expelling the developing fetus. Progesterone also helps to prepare the breasts for lactation.
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Explain the relationships between dehydration synthesis, hydrolysis, monomer, and polymer
Answer:
combine with each other using covalent bonds
Explanation:
Most macromolecules are made from single subunits, or building blocks, called monomers. The monomers combine with each other using covalent bonds to form larger molecules known as polymers. In doing so, monomers release water molecules as byproducts.
Answer:
Dehydration synthesis is a process by which two monomers are linked to form a polymer, with water being given off as a byproduct. Conversely, hydrolysis is the process by which water is introduced in order to break down a polymer into its monomer building blocks.
In your opinion, can aquatic plant live in the dark zone? Give your reason 2
Answer:
Yes
Explanation:
Because the plant has micro bacterial to live off of. Not all plants need sunlight.
the vagina and the neck of the uterus comprise the
The vagina and the neck of the uterus comprise the cervix. The correct answer is B. cervix.
The cervix is the lower part of the uterus that connects the uterus to the vagina. It is a cylindrical structure that serves as a passageway between the uterus and the birth canal, which is the vagina.
The cervix plays a crucial role during childbirth as it dilates to allow the baby to pass through during delivery. It also produces mucus that changes in consistency throughout the menstrual cycle to facilitate or hinder sperm passage.
The womb (option A) refers to the uterus as a whole, including both the body of the uterus and the cervix. The fundus (option C) refers to the upper part of the uterus, while the birth canal (option D) specifically refers to the vagina.
Therefore, the correct option is B, cervix.
Complete question:
The vagina and the neck of the uterus comprise the:
A. womb.
B. cervix.
C. fundus.
D. birth canal.
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