Fitness is defined as the probability of an organism and in the environmen in which it is found.
Which words correctly complete gaps 1 and 2?

A. photosynthesising and respiring
B. reproducing and respiring
C. surviving and reproducing
D. surviving and photosynthesising
​

Many body systems work together for proper functioning of the body and to maintain internal homeostasis. the works to break down food eaten before exercising. the takes in the nutrients obtained from the food. the body sweats as a mechanism to cool off, because the is working to flush out toxins.