3. Carbon is a good molecular building block because it has 4 valence electrons and thus can form ionic bonds with four other atoms. agree disagree My explanation:

The arrangement of fatty acids and polar headgroups in phospholipids forms a self-assembled bilayer structure that constitutes the structural foundation of all cell membranes. The correct option is A.

Phospholipids are common in all types of organisms, including archaea, bacteria, and eukaryotes. However, phospholipids with branched chains are particularly common in archaea. Due to the variation in the structure of their membranes, archaea are known to have unique membrane compositions that allow them to thrive in extreme environments, such as high temperatures, high salt concentrations, and low pH levels.

The lipids in archaeal membranes have more branches and are linked by ether bonds rather than ester bonds, which distinguishes them from other organisms. As a result, archaeal membranes are more resistant to high temperatures and harsh environments. The correct option is A.

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Answer:

The asthenosphere keeps Earth's crust from getting too hot. Earth's plates float on the denser asthenosphere. The depth of the asthenosphere keeps pressure on Earth's core. The asthenosphere allows Earth's crust to move.

Explanation:

Plz Brainly

Answer:

earth plates float on the denser asthenosphere

the asthenosphere allows earth crust to move

Explanation:

edge

Explanation:

The bacteria’s helps in breaking down the organic materials which has nitrogen in it, and helps in giving the nitrogen back to the cycle. Bacteria helps in breaking down of the leaves and then it diffuses the nitrogen to the soil. Prokaryotes also plays an important role in the nitrogen cycle. The nitrogen fixing bacteria present in the root zone of plants basically in the soil, helps in conversion of the nitrogen into ammonia. Then the nitrifying bacteria converts the ammonia to the nitrites or can say nitrates.  

Answer:

sorry I didn't know hahaha

Answer:

When laughter is shared, it binds people together and increases happiness and intimacy.

Answer:

Belize Barrier Reef

Belize Barrier Reef, coral reef that is second in size after the Great Barrier Reef of Australia and is the largest of its kind in the Northern and Western hemispheres.

The ribbon eel (Rhinomuraena quaesita), also known as the leaf-nosed moray eel or bernis eel, is a species of moray eel, the only member of the genus Rhinomuraena. What is now known as R. quaesita also includes the former R. amboinensis. R. quaesita was used for blue ribbon eels and R. amboinensis for black ribbon eels, but these are now recognized as the same species. The ribbon eel is found in lagoons and reefs in the Indo-Pacific ocean, ranging from East Africa to southern Japan, Australia and French Polynesia.[1][2] This species is widely distributed and is frequently seen by divers in Indonesian waters with their heads and anterior bodies protruding from crevices in sand and rubble habitats from very shallow to about 60 m.[3] Although generally placed in the moray eel family Muraenidae, it has several distinctive features leading some to place it in its own family, Rhinomuraenidae....[1]

The somatic nervous system transmits sensory and motor signals to and from the central nervous system. The autonomic nervous system controls the function of our organs and glands, and can be divided into the sympathetic and parasympathetic divisions.

,

The ovaries and testes are the two main reproductive organs, or gonads. Gametes, including the egg and sperm, as well as hormones, are created in these organs.

The ovaries and testes are the primary reproductive organs, or gonads. These organs are in charge of producing egg and sperm cells, as well as gametes and hormones.

The reproductive system's primary function is to ensure the survival of the species. Other systems in the body, such as the endocrine and urinary systems, work constantly to keep the individual's homeostasis.

An individual can live a long, healthy, and happy life without bearing children, but for the species to survive, at least some individuals must bear children.

The uterus, two ovaries, two fallopian tubes, the urethra, the pubic bone, and the rectum comprise the internal reproductive anatomy. The endometrium is the inner lining of the uterus.

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Answer:

1. Igneous

2. Compacting and cementation

3. Igneous

Answer:

The key steps to making a solution of a certain concentration are:

1. Determine the desired concentration: The first step in making a solution of a certain concentration is to determine what the desired concentration is. This will depend on the specific application of the solution.

2. Calculate the amount of solute needed: Once you know the desired concentration, you need to calculate the amount of solute (the substance being dissolved) that you need to add to the solvent (the liquid used to dissolve the solute) to achieve the desired concentration. This calculation depends on the molecular weight and purity of the solute.

3. Measure out the solute: After calculating the amount of solute needed, measure out the exact amount of solute required using a laboratory balance or other accurate measuring device.

4. Add the solute to the solvent: Carefully pour the measured solute into the solvent while stirring gently. It is important to dissolve the solute completely in the solvent.

5. Verify the concentration: Once the solute has been completely dissolved in the solvent, verify the final concentration by measuring it using appropriate laboratory instruments such as a spectrophotometer or titration apparatus. If necessary, adjust the concentration by adding more solute or solvent until the desired concentration is achieved.

6. Label and store the solution: Finally, label the solution with its identity, concentration, date of preparation, and any other relevant information. Store the solution according to appropriate guidelines for the particular type of solution, such as refrigeration or storage in a dark location.

Answer:B

Explanation:

A p e x

Stories differ from scientific explanations by the fact that they are based on imagination. Thus, the correct option is B.

A scientific explanation may be defined as a type of explanation that utilizes numerous observations and measurements in order to explain the fact that we see in the natural world on the basis of accurate and valid evidence.

Stories are based on imagination, while scientific explanations are based on evidence. It can not be said that stories are always negative. It may not remarkably true that stories are avoided presenting bias.

Scientific explanations always match with logical comprehension as well as the suggested evidence with respect to the fact in a systematic way.

Therefore, stories are based on imagination is that fact that differs stories from scientific explanations. Thus, the correct option is B.

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Answer:

Thermal energy

Explanation:

The major issue that John faced in the opening vignette of the drug abuse chapter was heroin addiction. The vignette detailed John's struggle with the drug, including his initial experimentation with it and eventual dependence on it.

The chapter goes on to explore the devastating effects of drug abuse on individuals, families, and communities, and offers strategies for prevention and treatment. Heroin addiction is a particularly dangerous form of drug abuse due to its highly addictive nature and the risk of overdose. It is important for individuals struggling with addiction, as well as their loved ones, to seek help and support to overcome this devastating disease. Through education, prevention efforts, and effective treatment, we can work to combat the devastating impact of drug abuse on individuals and communities.

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Gathering new evidence using new technologies or procedures most likely will lead scientists to change or improve an existing scientific theory (Option D).

A scientific theory is a well-sustained claim/model based on the collection of empirical evidence derived from different experiments and/or observations.

Scientific theories can be enhanced and even refuted by the emergence of new evidence capable of rejecting their claims.

In conclusion, gathering new evidence using new technologies or procedures most likely will lead scientists to change or improve an existing scientific theory (Option D).

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When the native proteins are separating and we shine the UV light on the gel, the bands are faint. The reason is that native proteins maintain their three-dimensional shape, which enables them to fold back on themselves and protects their hydrophobic core from interaction with the negatively charged SDS molecule.

The SDS-PAGE buffer has a denaturing agent, which causes the protein to denature, lose its three-dimensional shape, and have a uniform negative charge distribution.The migration of proteins that are exposed to a denaturing agent, such as sodium dodecyl sulfate, is based on the length of their polypeptide chains. The bands are darker when proteins are denatured because the denaturation process eliminates their tertiary structure and results in a uniform negative charge distribution, making the SDS-protein complex size-dependent. As a result, the negatively charged SDS binds to the protein, giving it a negative charge, which causes it to migrate through the gel at a rate proportional to its length and charge-density.

Hence, we can conclude that native proteins maintain their three-dimensional shape, and the SDS-PAGE buffer has a denaturing agent that causes the protein to denature, lose its three-dimensional shape, and have a uniform negative charge distribution, which is the main reason for the difference in what we see in the denatured protein lane compared to the native protein lane when we shine the UV light on the gel.

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Answer:

It's intestine but partially small intestine

Answer:

D

Explanation:

A layer of resin and woody tissue sticks the cones' scales together. The seeds are locked in tight, and the cones can't open unless they're exposed to VERY high temperatures like the type of temperatures that fire provides. This shows they survive through exposing the seeds after forest fires.

Answer:

D

Explanation:

A It allows the lodgepole pine tree to make more seeds in cones that are hard to open. IS WRONG B) It creates more wildfires for the lodgepole pine tree to reproduce. IS WRONG C) It makes the seeds travel and grow in areas where there are no wildfires. DEFINITLY NOT so that leaves it with D  It helps the lodgepole pine tree to protect the seeds and to reproduce.

Answer:

A couple of homologous chromosomes, or homologs, are a set of one maternal and one paternal chromosome that pair up with each other inside a cell during fertilization.

Explanation:

Answer:

A couple of homologous chromosomes, or homologs, are a set of one maternal and one paternal chromosome that pair up with each other inside a cell during fertilization.

Hope this helps. Can u give me brainliest

Explanation:

T. rex lived between 90 and 66 billion years ago, during the very conclusion of the Late Cretaceous.

Whether or not they hatched, rex parents would take care of their young. Although no T. rex nests nor eggs have ever been unearthed, remains of other Tyrannosaur siblings indicate that they may have deposited 20 or more elongated at one time.

The T-Rex was 40 feet long, 20 feet tall, and weighted a maximum of 15,000 pounds. The Giganotosaurus has the benefit because it is a larger dinosaur despite the close contrast. One of the biggest killers to ever prowl the Earth was the gigantosaurus.

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Answer:

I'm pretty sure the answers are differences in water density (temperature and water density/salinity) ...... global wind systems *but I'm not 100%*

Explanation:

Hopefully I'm correct but If not I'm sorry!

Good luck :)))))

When Courtney and Kenzie submitted their results to a journal for publication, scientists criticized the experiment. The experiment would need to be changed so that scientists might accept their findings by having several more tanks of fish.

Why would they need to change their experiment? Scientists criticized the experiment because it is not possible to determine which fish food gives their fish more energy just from two tanks of fish. Having more tanks of fish would mean that the study is more precise and closer to what could happen in the real world. This will result in more precise findings to support or reject the hypothesis that the fish food gives their fish more energy. Therefore, it can be concluded that C) There would need to be several more tanks of fish is the correct option.

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say you eat mcdonalds everyday and all that grease and artifical flavorings that weakens ur umune system but if u eat ur fruits,veggies, protiens,and exc ur ummune system is stronger than those who eat mcdonalds all day

Answer:

oranges

Explanation:

Oranges are rich in vitamin C, folate, and potassium. When eaten, oranges, like apples, will provide you with sustained energy as opposed to a quick jolt.  Additionally, fruits contain simple carbohydrates that your body easily breaks down into glucose to give you a quick boost of energy.

Gas cloud 1: It spreads with a larger area and a lower elemental concentration. Its temperature never rises above 14 million Kelvin. It has hydrogen atoms with electrons retained.

Gas cloud 2: As a result of gravity, its volume decreases and density rises. Its temperature is consistently above 14 million kelvin. The electrons in hydrogen atoms are lost.

As you are undoubtedly aware, stars develop amid gaseous clouds. Interstellar gases, primarily made of dust and hydrogen, are present in these clouds. Low temperatures cause gases to react, mix, and form molecules, which then produce clouds and continue to react until they eventually form stars.

Since Cloud 1 spreads with a higher volume and a smaller concentration of components, its temperature maintains far below 14 million Kelvin, and it contains hydrogen atoms that retain their electrons, these traits indicate that Cloud 1 will eventually create a star.

Given that cloud 2 won't produce stars, we can state the following about it: Due to gravity, its volume decreases and density rises, but its temperature remains above 14 million kelvin.

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Answer:

which of the statements is true for all organisms, CHOOSE THREE.

A. all organisms consume food

C. all organisms grow and produce offspring

How might the virus affect the male reproductive system?A recent protein within male animals. ntly discovered virus has been found to decrease production of androgen binding protein within male animals.

The explanation of how the virus might affect the male reproductive system is that the virus will reduce the levels of androgens produced by the body.Androgens are hormones responsible for the development of male sex organs and maintaining secondary sex characteristics in males, including hair growth, muscle development, and the deepening of the voice. When the virus decreases the production of androgen binding protein, it reduces the levels of androgens produced by the body.

The decrease of androgens affects the male reproductive system by affecting the levels of testosterone in the male body. Lower testosterone levels lead to a decrease in sperm production, decreased libido, decreased erectile function, and decreased fertility.

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Cellular respiration is the process by which cells obtain chemical energy by the consumption of oxygen and the release of carbon dioxide.

Cellular respiration is the major process by which living cells obtain energy for their metabolic activities. The energy is in form of ATP.

Cellular respiration combines glucose and oxygen to produce energy (ATP), water and carbondioxide.

Therefore, in accordance with this question, the carbohydrates in the plants eaten by a fish will be broken down into water and carbondioxide, with the simultaneous release of energy.

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