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zhenek [66]
3 years ago
12

Which molecule crosses the plasma membrane by diffusion?

Biology
1 answer:
SpyIntel [72]3 years ago
5 0
This answer would be all of the above
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Need rn! worth 13 ~ 謝謝
Arte-miy333 [17]
It is B I think

Hope this helped
5 0
3 years ago
If a human or a prey animal is out and about at night, they are more at risk of being eaten. if the prey are in a safe place sle
weqwewe [10]

Some of the organisms have evolved in such a way that they remain inactive when the predator populations are active.  

Adaptive theory of sleep suggests that the prey population prefer to sleep when (in this case, at night) the predators are most active. The prey population use this time in taking rest and restoring energy for other works. As the prey population is inactive and remained protected in safe places, they are less likely to be predated.  

Hence, the correct answer is adaptive theory of sleeping.  


6 0
3 years ago
Read 2 more answers
How is the increase in pulse rate while carrying out vigorous activities related to the rate of oxygen intake and release of car
polet [3.4K]
During exercise there is an increase in physical activity and muscle cells respire more than they do when the body is at rest. The heart rate increases during exercise. The rate and depth of breathing increases - this makes sure that more oxygen is absorbed into the blood, and more carbon dioxide is removed from it.
3 0
3 years ago
During a rainy spring, where are you most likely to find surface runoff? PLEASE HELP
natima [27]

Answer: C. On a sloped parking lot

Surface runoff can be referred as the flow of water, that occurs when the excess water flows from the storm water, melt water, flood, rain streams and rain fall. The fast moving water current takes along with it superficial layers like surface and sub- surface layers of soil. Hence, causes water erosion of soil.

The slope parking lot will favor, surface runoff more likely than in a grassy prairie, mulched flower bed, or in a sand pit because the slope will provide a surface for free flow of water. There are chances that water gets absorbed by the soil in the grassy prairie, mulched flower bed and sand pit. Whereas the slopy surface of parking lot will not allow the water retention by soil, instead will accelerate the flow of water.

4 0
3 years ago
There is a population of beetles that typically have black wings. A scientist studying these beetles knows that their eggs hatch
ioda

Answer:

A) Black winged beetles have higher fitness than white winged beetles

Explanation:

Because after the white winged beetles have played their eggs they die

7 0
3 years ago
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