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scZoUnD [109]
3 years ago
5

Why is the blood that flows from the lungs toward the heart a brighter red than the blood that flows the other direction?

Biology
2 answers:
tatiyna3 years ago
3 0
There is more oxygen near the lungs, because fresh oxygen goes into the lungs.
zlopas [31]3 years ago
3 0
B. the presence of oxygen-bound hemoglobin makes it bright red
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faust18 [17]

Answer:

24

Explanation:

24 mating pairs are illustrated in Model 1 .

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In 3-5 sentences, describe the human respiratory system and its functions.(4 points)
klemol [59]

Answer:

the network of organs and tissues that help you breathe. It includes your airways, lungs and blood vessels. The muscles that power your lungs are also part of the respiratory system. These parts work together to move oxygen throughout the body and clean out waste gases like carbon dioxide.

Explanation:

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In an effort to control vegetation overgrowth, 100 rabbits are released in an isolated area that is free of predators. After one
suter [353]

Answer:

It will plateau and the population will stabilize in relationship to available resources.

Explanation:

Having an unhinged rabbit population with no predators and an abundance of food will cause the population to initially increase. This increase will be due to an environment free from predation and also encouraged by an abundance of food.

In time these rabbits will increase in number and will put a strain on food supply. Dwindling resources will put pressure on reproduction. In addition to this these have a limited gene pool since they have been only reproducing with each other. This will pass along any disease sensitivity that they may have. In the even that a disease is introduced into the population many of them will be wiped out.

In conclusion, without a constant food supply to support a growing population the rabbit population will not multiply exponentially, indefinitely.

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3 years ago
1. Compare and contrast ATP and NADH.
Leokris [45]

Answer:

Glycolysis produces 4 ATP molecules, giving it a net gain of 2 ATP molecules. The four high energy electrons that are removed by glycolysis are picked by an electron carrier called NAD. NAD becomes NADH.As it spins it grabs an ADP molecule and attaches a phosphate, forming high energy ATP.

Explanation:

Both NADPH and ATP are phosphorylated compounds, both are very important catabolic as well as anabolic processes. To explain the difference, their respective functions/roles in biochemical processes should be described along with relevant chemical properties.

ATP (Adenosine triphospahte) is called an energy rich molecule because of the large negative free energy of its hydrolysis (And has nothing to do with high bond energy).

30.5 kilo Joules or 7.3 kilo calorie energy is liberated after hydrolysis of one ATP molecule to form ADP (Adenosine diphosphate) and phosphate.The reaction is almost irreversible

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2. What would happen to the cows if all of the grass was eaten or died?
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they would die

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