Answer:
In the presence of oxygen, a cell will always carry out <em>aerobic</em> respiration if it is capable of doing so.
Explanation:
Aerobic respiration can be described as a type of respiration which occurs in the presence of oxygen. In the presence of oxygen, a cell will always prefer to carry out aerobic respiration as it produced more ATP as compared to anaerobic respiration.
Rough estimations have shown that almost 36 atoms of ATP are generated by the process of aerobic respiration. During this process, cells breakdown food in the mitochondria and undergoes the steps of glycolysis, citric acid cycle and electron transport chain to produce energy.
Answer:
Because only plant cells contain chloroplasts.
Explanation:
If root hair cells contained chloroplasts then that would just not make sense because, in order for the root hair cells to grow they would need sunlight.
The correct answer is - B. feathered.
The primitive mammals were very small (with a couple of exceptions), rodent-like, also very often described as shrew-like. They were feeding with plants, as well as with insects and the occasional egg. Most of them were night creatures, and they were living in the shadow of the much bigger dinosaurs.
So, they were small, furry, rodent-like, night-dwellers, but there isn't a single evidence that any of the primitive mammals, or any mammal whatsoever, had feathers.