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luda_lava [24]
3 years ago
14

Why is it Important that cell membrane contain openings into cell ?

Biology
1 answer:
Ira Lisetskai [31]3 years ago
6 0

Answer:

Embedded in the lipid bilayer are large proteins, many of which transport ions and water-soluble molecules across the membrane. Some proteins in the plasma membrane form open pores, called membrane channels, which allow the free diffusion of ions into and out of the cell.

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The acceleration of gravity on earth is approximately 10 m/s2 (more precisely, 9.8 m/s2). if you drop a rock from a tall buildin
trapecia [35]
3s x 10 m/s2 = 30 m/s
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2 years ago
Baron Constantin von Economo discovered the involvement of the posterior hypothalamus and the anterior hypothalamus in human ___
Leona [35]

Answer:

Wakefulness and sleep.

Explanation:

Hypothalamus may be defined as the small region of the brain that maintains the homeostasis of the body. The hypothalamus is divided into anterior hypothalamus and posterior hypothalamus.

The anterior hypothalamus of the brain is involved in the sleep activity of the organisms and releases the hormones also. The posterior hypothalamus is involved in the wakefulness of the individual.

Thus, the correct answer is wakefulness and sleep.

3 0
3 years ago
According to Darwin’s On the Origin of Species, what four factors affect evolution? Explain how each factor affects evolution.
Kryger [21]

The 4 factors affect evolution, according to Darwin’s Origin of Species are;

Variation

Heritability

Competition

Differential survival

Variation ensures that there is variability of population traits on which selection pressures will apply.

Heritability means that the traits must be able to be passed down to offsprings through gametes.

Competition occurs when the individuals in the population compete for limited resources

Differential survival occurs due to competition for resources and other selection pressures. This result to the survival of the strongest and weeding out of the weak from the population.






4 0
3 years ago
How well do you think the exercised muscles would work after 30 minutes of rest instead of 30 seconds of rest between trials?
JulsSmile [24]

Answer:

We at Bright Side invite you to take a look at what you can expect from your body when you finally pull yourself together and start training. Illustrated by Ekaterina Gapanovich for Bright Side.

Explanation:

5 0
3 years ago
What is the typical source of well water?
vova2212 [387]

Answer:

an aquifer

Explanation:

3 0
3 years ago
Read 2 more answers
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