Answer: During vigorous exercise your breathing rate increases in order to intake more oxygen
Explanation: during vigorous exercise / activity the body needs more oxygen in order to produce energy so your breathing rate increases in order to reach the demand of more intake of oxygen , and your muscles work harder due to an increase in oxygen demand and how much oxygen the muscles take from the blood during vigorous exercises , BUT during rest we have normal rate of oxygen intake because your body is at rest at that moment .
HOPE THIS HELPS!!!!!!!!!!!!!!!!!!!!!!!!!
The second and third one I believe
Answer:
1. cell walls tend to be more rigid than the cell membrane
Explanation:
Cell walls are called 'walls' for a reason (:
Answer:
the three catfish will be taken out of the pond whenever they meet
Ctyoplasm:
The jelly like substance that surrounds a cell
Ribosomes can be found in the Cytoplasm, along with Cytoskeleton, Lysosomes, and in plant cells Cholorplasts.
Cytoskeleton:
This is the form of defense an animal cell has, since it lacks a cell wall unlike a plant cell animal cells have a Cytoskeleton.
