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Sergeeva-Olga [200]
3 years ago
13

Explain how activation energy is related to exothermic and endothermic reactions.

Biology
1 answer:
Paul [167]3 years ago
4 0

Explanation:

Some chemical reactions need a constant input of energy to take place. They are called endothermic reactions. ... From the graphs, you can see that both types of reactions need the same amount of activation energy in order to get started. Only after it starts does the exothermic reaction produce more energy than it uses.

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The DNA is copied during which one of the following? (A) the mitotic phase (B) the G phase
mezya [45]

Answer:

C

Explanation:

5 0
3 years ago
experimental evidence shows that the process of glycolysis is present and virtually identical in organisms from all three domain
puteri [66]

The question is incomplete as it lacks the multiple options. The multiple options are as follows:

a. Across the three domains, all organisms depend solely on the process of anaerobic respiration for ATP production .

b. Glycolysis is a universal energy-releasing process and therefore suggests a common ancestor for all forms of life .

c. The existence of glycolysis as an energy-releasing process in all organisms suggests that convergent evolution occurred .

d. All organisms carry out glycolysis in mitochondria.

Answer:

Option (b).

Explanation:

The three main domains of life are prokarya, eukarya and archaea. The archaea and eukarya are more closely related with each other than the prokarya.

The glycolysis is the process of breakdown of glucose molecule to generate ATP. The glycolysis is the most common process of the generation of the ATP are present in almost all the organisms whether the organisms is ancestral or modern.  

Thus, the correct answer is option (b).

4 0
3 years ago
How do the circulatory and respiratory system interact to provide muscle cells with oxygen during a long distance race?
Orlov [11]

Answer:

Humans—and other complex multicellular organisms—have systems of organs that work together, carrying out processes that keep us alive.

The body has levels of organization that build on each other. Cells make up tissues, tissues make up organs, and organs make up organ systems.

The function of an organ system depends on the integrated activity of its organs. For instance, digestive system organs cooperate to process food.

The survival of the organism depends on the integrated activity of all the organ systems, often coordinated by the endocrine and nervous systems.

Explanation:Goblet cell in your respiratory epithelium of trachea.

3 0
3 years ago
Cilia and flagella bend because of _____. cilia and flagella bend because of _____. the quick inward movements of water by osmos
Ronch [10]

Answer;

-A motor protein called dynein

Cilia and flagella bend because of a motor protein called dynein.

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-Cilia and flagella are formed from specialized groupings of microtubules called basal bodies. If the protrusions are short and numerous they are termed cilia. If they are longer and less numerous they are termed flagella.

8 0
3 years ago
i need friends and I need a question answered and i give brainliest too what 3 characteristics of a mammal
Anon25 [30]

Answer:

There are many characteristics of a mammal their hair and furs, young are fed by milk, and sweat glanced.

7 0
3 years ago
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