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Alina [70]
3 years ago
13

what role does molecular evidence play in determining how closely two species are related to each other

Biology
1 answer:
qwelly [4]3 years ago
5 0
Recall the endosymbiosis hypothesis and recall endosymbiosis. Remember that the very first cell was a prokaryotic cell. Which engulfed chloroplast precursors and mitochondria. We all come from these cells. And how we evolved over time shows the relationship. I'm a bio major hope I helped
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People’s choices can have a positive or negative effect on their health. Describe one positive choice and one negative health ch
Softa [21]

Answer: so one positive choice is going outside and  going for a jog can increase your health and a negative choice can be have a unhealthy diet and that could lead to sickness or weakening the body.  

Explanation:

hoped it help ^^

5 0
3 years ago
A major theme in biology is the relationship between structure and function. Describe how the structures of chloroplasts and mit
Flura [38]
The structures of chloroplast and mitochondria are similar. Both organelles consist of a smooth outer membrane, folded inner membrane (in chloroplasts called lamellae, in mitochondria called cristae), and fluid intracellular space (in chloroplast called stroma, in mitochondria called matrix). Only these structures allow those organelles to perform their function. The presence of folded inner membranes enables a formation of compartments inside the organelles. Differences in concentrations of hydrogen ions in those compartments are important for photosynthesis in chloroplasts and cellular respiration in mitochondria.
3 0
3 years ago
An unconformity is a ______ of rock.
wlad13 [49]
<span>An unconformity is a break in the geologic record. These unconformities are created in cases when rock layers erode or sedimentation does not occur for a long period of time. </span>
4 0
3 years ago
I need help please um just look at the pictures so yea​
Phoenix [80]

Answer:

They release C02, which contributes to climate change.

They can cause health issues.

Explanation:

The other two are positive aspects, and these two are true.

7 0
3 years ago
identify the type of blood vessels that artherosclerosis will affect. Why is it important that these blood vessels be elastic an
muminat

Answer:

Atherosclerosis affects arteries, these blood vessels are elastic and flexible in order to allow good blood circulation

Explanation:

The blood vessels are classified into three types: arteries, veins, and capillaries. An artery is a muscular blood vessel that is able to carry blood away from the heart to different parts of the body. Healthy arteries need to be elastic and flexible in order to adjust their diameter and thus control blood flow by maintaining blood pressure. Arteriosclerosis is a chronic disease caused by the accumulation of fatty substances (especially cholesterol) in the artery walls, thereby difficulting blood circulation by thickening and hardening these walls.

8 0
3 years ago
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