Is the idea that organisms that are better adapted to their environment have a better chance of survival than organisms that are poorly adapted to their environment.

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

i'm guessing this is from edg enuity so the answers would be, from top to bottom,

theodor schwann

matthias schleiden

robert hooke

rudolph virchow

anton van leeuwenhoek

i believe the answer is snake.

i think the answer is a.keratin is the pigment responsible for skin color.