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Mila [183]
3 years ago
12

The graph here shows a population of rabbits in an ecosystem that the rabbits are not allowed to enter or leave

Biology
1 answer:
Oksi-84 [34.3K]3 years ago
8 0
Try B I’m not too sure
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Ideally, an observatory is located where nothing is present to interfere with incoming starlight. Which of these sites would be
Ivahew [28]

Answer:

I believe it would be the one orbiting above the atmosphere or on Venus

Explanation:

There are no artificial/man-made interferences and being outside of the Earth's atmosphere more starlight can reach the observatory.

3 0
2 years ago
On a backpacking trip, Kenny hikes all day at a steady pace, covering 30 kilometers and burning 4000 Calories. At the school tra
emmasim [6.3K]

Answer:

A. If the aerobic pathway—cellular respiration—cannot meet the energy demand, then the anaerobic pathway—lactic acid fermentation—starts up, resulting in lactic acid buildup and "oxygen debt."

D. The rate of energy demand determines how the muscles will obtain energy, either from cellular respiration or from lactic acid fermentation if not enough oxygen is present.

Explanation:

It is important to consider that Kenny hikes all day but at a steady pace, whereas Janelle runs very fast. So Kenny's case, the supply of oxygen is sufficient to maintain aerobic respiration within the muscle cells. During this process only CO2, Water, and ATP are produced; therefore, there is no oxygen debt. We should keep in mind that the body shifts to anaerobic metabolism only when the supply of oxygen is limited.

In Janelle's case, running fast would need energy at higher rates and the supply of oxygen would not be sufficient to generate a high amount of ATPs. Therefore, to compensate for this deficiency, cells will start fermenting glucose to lactic acid and produce ATP and maintain energy demands. This lactic acid causes fatigue and this is why Janelle has aching and breathing hard. Breathing hard is also automatic reflux to inhale more oxygen and meet oxygen demands but even breathing hard would not be able to make it and the body will shift to anaerobic respiration automatically.

5 0
3 years ago
Compare parasympathetic nervous system vs sympathetic
Galina-37 [17]

Answer:

Parasympathetic nervous system effects are slow or inhibit function, where is sympathetic, is responsible for the intense physical activity.

Explanation:

The autonomic nervous system or ANS is divided into 2 distinct systems on the basis of their effects- the parasympathetic nervous system and the sympathetic nervous system.

Both of these have opposite actions on the functions that they maintain.

The sympathetic nervous system regulates the body for a high level of physical activity and also known as fight or flight. It fasts the functions of the body according to the situation.

The parasympathetic nervous system is having the opposite effect of the sympathetic nervous system slows high energy functions and relaxes the body.  

Thus, the comparison of these nervous systems is mention above.

5 0
3 years ago
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While looking at a cell under a microscope, a scientist is able to see a biological molecule. This molecule is a nucleic acid wi
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The nucleic acid is DNA 
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3 years ago
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How can reproductive isolation lead to speciation?
hram777 [196]
How can reproductive isolation lead to speciation<span>? If populations cannot mate successfully with one another, genetic differences may accumulate in the populations. Over time they become very different and give rise to new species.</span>
8 0
3 years ago
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