Answer:
D) It is a measure of distance.
Explanation:
I belive is the answer
The skin functions as a barrier to prevent the entry of microorganisms.
Due to the increasing temperature in ocean it is more advantageous for start fishes to reproduce asexually because they can regenerate via a process called fragmentation.
In fragmentation, a part of arm or a part of disc is separated from the parent body and grows into a complete new organism; an individual star fish.
Moreover, regeneration is the ability of an organism to renew, or re-grow any part of the body, makes it resilient to environmental fluctuations.
In photosynthesis, a thylakoid is a sac located in a chloroplast which absorbs light in the form of photons through proteins called Photosystems I and II and cytochrome complexes and uses it to harvest ATP. All of this occurs during the light reaction step of photosynthesis on the membranes of the thylakoids.
