An enzyme is a ______ that brings about chemical reactions in living things.

Explanation:

The Calvin cycle takes place in the stroma and uses the ATP and NADPH from the light-dependent reactions to fix carbon dioxide, producing three-carbon sugars—glyceraldehyde-3-phosphate, or G3P, molecules. The Calvin cycle converts ATP to ADP and Pi, and it converts NADPH to NADP+.

A pituitary tumor that increases the secretion of growth hormone releasing hormone above normal will result in excessive production of growth hormone.

The pituitary gland is responsible for producing and releasing various hormones that regulate bodily functions, including growth hormones.

When a tumor develops in the pituitary gland and increases the production and release of growth hormone-releasing hormone, it leads to excessive production of growth hormone, a condition known as acromegaly.

Acromegaly causes abnormal growth of bones and tissues, particularly in the face, hands, and feet, as well as other health issues such as joint pain, hypertension, and diabetes mellitus. Treatment for pituitary tumors and acromegaly may involve surgery, radiation therapy, and medications to regulate hormone levels.

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The correct answer to the MCQ is D. Macrophages. Phagocytosis is one of the host's defense mechanisms conferring innate immunity. The term "phagocytosis" means "cell eating" and refers to the engulfment of a microbe or other particles such as debris by phagocytes, which are cells that have the ability to perform phagocytosis.

Macrophages, monocytes, and neutrophils are the three major types of phagocytic cells. Basophils, eosinophils, and plasma cells are not phagocytic cells. Basophils and eosinophils are leukocytes (white blood cells).

that help protect the body from infection and disease. Plasma cells are a type of white blood cell that produces and secretes antibodies.

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If the 5' methyl guanosine cap is not added to an mRNA, it would result in the destabilization and degradation of the mRNA molecule.

The addition of the 5' methyl guanosine cap is a critical modification that occurs at the 5' end of mRNA molecules in eukaryotes. This cap plays several important roles in mRNA stability, translation, and recognition by the cellular machinery. Firstly, the cap protects the mRNA from degradation by exonucleases. Without the cap, the mRNA would be more susceptible to degradation, leading to a decrease in its stability and ultimately its rapid turnover.

Secondly, the cap is essential for the recognition and binding of the mRNA by the translation initiation complex, which is required for the initiation of protein synthesis. Without the cap, the mRNA would have reduced translation efficiency and lower protein production. Therefore, the addition of the 5' methyl guanosine cap is crucial for mRNA stability, translation, and overall gene expression.

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Answer:

There is less energy in higher trophic levels.

Explanation:

With less energy at higher trophic levels, there are usually fewer organisms as well. Organisms tend to be larger in size at higher trophic levels!

The second rule of thermodynamics indicates that some energy is wasted as heat with each energy transfer or transformation, hence higher trophic levels in most ecosystems have fewer organisms than lower trophic levels.

In an ecosystem, producers like plants use the sun's energy to build organic molecules through a process called photosynthesis. Primary consumers like herbivores then eat these organic compounds. Although the herbivores receive the energy from the organic molecules, some of it is wasted as heat during metabolism along with other biological processes.

The remaining energy is subsequently given to secondary consumers, such carnivores, with part of it once more being lost as heat. The same holds true for higher trophic levels. As we progress up the food chain, the amount of energy available at each trophic level declines, and fewer species can be supported at each higher level.

Therefore, the second rule of thermodynamics indicates that some energy is wasted as heat with each energy transfer or transformation, hence higher trophic levels in most ecosystems have fewer organisms than lower trophic levels.

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Many animals control their body temperature by behaviour, such as huddling together for warmth or looking for light or shade.

The ability of animals to control their body temperature is their most significant adaption. Cold-blooded or warm-blooded animals are both possible. Animals with warm blood, primarily birds and mammals, must maintain a generally steady body temperature in order to avoid serious repercussions.

Poikilotherms, often known as cold-blooded animals, are creatures that are unable to produce their own internal heat. All organisms, excluding mammals and birds, fall under this category, including worms, fish, amphibians, and reptiles.

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Answer:

Yes! I think/ True

Explanation:

The accepted views of science knowledge can change over time. Changes can result from new science observations, but can also be affected by social, political or religious convictions.

Answer:

True

Explanation:

Because the more technology improves on the daily the easier it'll be to discover new things about science that in the past were not achievable because they didn't have the proper resources

Outcomes and prognostic variables associated with primary abdominal visceral soft tissue sarcomas in dogs: A Veterinary Society of Surgical Oncology retrospective study."

This study focuses on primary abdominal visceral soft tissue sarcomas in dogs and aims to investigate the outcomes and prognostic variables associated with this type of cancer. Soft tissue sarcomas are malignant tumors that arise from connective tissues, and abdominal visceral sarcomas specifically involve organs within the abdominal cavity. The study is retrospective, meaning it analyzes previously collected data. By examining a large sample of cases, the researchers aim to identify factors that may influence the prognosis and outcome of dogs with these sarcomas. The findings from this study can provide valuable insights into the management and treatment of primary abdominal visceral soft tissue sarcomas in dogs, ultimately aiding in improved patient care and outcomes.

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Answer:

12.6 kilometers

Explanation:

Answer:

d. Break down stored food molecules to use for the formation of ATP.

The breakeven point in units increases when unit costs increase and the sales price remains unchanged.

The break-even point will boom by any of the subsequent: An increase in the quantity of the company's constant costs/costs. A boom within the per unit variable charges/charges.

A low breakeven factor approach that the enterprise will begin making a profit quicker, whereas an excessive breakeven point means extra services or products that want to be sold to attain that factor.

Therefore, The breakeven point in units increases when unit costs increase and the sales price remains unchanged.

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Irregular respirations characterized by an increasing rate and depth of breathing followed by periods of apnea are called Cheyne-Stokes respirations.

Cheyne-Stokes respiration (CSR) is a type of disordered breathing marked by an abnormal pattern of breathing. CSR is a respiratory pattern where breathing becomes shallower and slower, followed by a pause, known as apnea. The pattern then starts again with deep breaths that become more frequent and shallow over time, before another pause. These cycles are then repeated with varying intensity throughout the period of CSR.

The respiratory system functions to oxygenate and ventilate the body, providing oxygen for metabolism and eliminating carbon dioxide. Disordered breathing can arise due to various factors, including central nervous system disorders, pulmonary disorders, and cardiac disorders.

CSR is one of the respiratory patterns that can occur as a result of central nervous system disorders, including stroke, traumatic brain injury, and brainstem tumors. CSR is also linked to heart failure, and it may signal poor cardiovascular function. 

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Answer:

C

Explanation:

Most sessile animals, such as barnacles, corals, and sponges, primarily consume plankton and organic particles by filter feeding or passive absorption.

Sessile animals are those that are permanently attached or anchored to a substrate and do not move around. Examples of sessile animals include corals, sponges, barnacles, and some types of marine worms.

The diet of sessile animals depends on their specific anatomy and feeding mechanisms, which are adapted to their stationary lifestyle

It's important to note that the specific diet of sessile animals can vary greatly depending on their species, habitat, and ecological niche. Some sessile animals may have a combination of feeding mechanisms, while others may rely primarily on one type of feeding strategy.

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Both contain cadherins,Adherens junctions and desmosomes both contain cadherins.

which are proteins that help cells stick together and provide physical strength to a cell layer.In animal tissues, desmosomes are a sort of anchoring junction that joins nearby cells. Anchoring junctions, which resemble little buttons and are present all over cells, connect nearby cells. Desmosomes have intermediate filaments in the cells below that assist anchor the junction, whereas microfilaments anchor the adherens junction, the other type of anchoring junction. The calcium-dependent adhesion after which cadherins are called. Many repetitions of the same protein chain make up the external domain of a cadherin molecule, which is the portion that is on the outside of a cell. There is a place to bind calcium in each repetition.

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complete question:Which feature is shared between adherens junctions and desmosomes?

a.Both contain cadherins

b. Both connect the intermediate filaments of neighboring cells

c. Both connect the actin cytoskeleton of neighboring cells

d. Both promote contraction of a cell layer

e. Both provide physical strength to a cell layer

The greatest diversity (numbers of different species) of organisms can be found in insects.

Estimates of the overall number of bug species or those belonging to certain orders can vary greatly. These estimations on average suggest that there are around 1.5 million species of beetles and 5.5 million species of insects worldwide, with approximately 1 million insect species having been discovered and documented so far.

Over 50% of all identified eukaryotes (1.8 million), or between 950,000 and 1,000,000 species, are insects (see illustration). With only 950,000 known non-insect species, if there are 5.5 million insects instead, they may make up more than 80% of the total.

Additionally, with only 20,000 new species of all organisms being described annually, the majority of insect species are likely to remain undiscovered unless the rate of species descriptions significantly increases.

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Answer:

Explanation:

alcholic fermentation is a form of anaerobic respiration and yeasts use the process to produce ethanol (alcohol). Lactic acidosis fermentation is another form of anaerobic respiration and it produces lactid acid.

Answer:A for the first one

Explanation:

Answer:

biological community of interacting organisms and their physical environment

Answer:

False .

atmosphere in early earth was filled with both methane and ammonia

Now days we have nitrogen, oxygen Carbon dioxide and variable gases

Answer:

False, because the atmosphere is not composed completely of these two gases. Ammonia and methane now make up little to none of the atmosphere.

Answer:

Law of Dominance and Uniformity

Law of Segregation

Law of Independent Assortment

Pigeons learned to peck one patch of color in response to a picture of malignant breast cancer cells and a different picture in response to benign cells. this was accomplished through operant conditioning.

Operant conditioning is a type of associative studying technique via which the energy of conduct is changed by using reinforcement or punishment. it's also a process that is used to bring about such learning.

When lab rats press a lever whilst a green light is on, they receive a food pellet as a reward. when they press the lever whilst a pink light is on, they obtain a moderate electric shock. As a result, they discover ways to press the lever whilst the green mild is on and avoid the pink light.

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Answer:

But the sky is dark at night, both because the universe had a beginning so there aren't stars in every direction, and more importantly, because the light from super distant stars and the even more distant cosmic background radiation gets red shifted away from the visible spectrum by the expansion of the universe.

One version implicated dust between stars and perhaps between galaxies. The idea was that the dust would block the light from faraway objects, making the sky dark. In reality, however, the light falling on the dust would eventually heat it up so that it would glow as brightly as the original sources of the light.Explanation:

Answer: In the matrix.

Explanation: The second stage of cellular respiration, the Krebs cycle, takes place in the matrix.

Answer:

Cohesion

Explanation:

Answer:

b. is the correct answer

Answer:

b

Explanation: