What survival stimulus makes an animal thirsty?

Survival and reproduction of animals results from genetic variation in their behavior and physiology. differential survival and evolutionary theory. variation exists among individuals, most offspring do not survive to reproduce, some survive and produce more offspring.

i think it's c

one is through turgidity. this occurs before ground tissue ( collenchyma

and sclerenchyma cells) become well

developed to give structural support to the plant as it grows bigger. the xylem

tissue (composed of rigid tissue) of the young

plant render this support and also maintaining osmotic turgidity of the surrounding

plant cells.