Which statement best describes an activity that will contribute to the maintenance of homeostasis in an organism?
1. a shark swims toward a high polluted region of the ocean.2. a desert rattlesnake enters an underground burrow on a hot summer day.3. roots of a willow tree grow away from a moisture-rich region of the soil4. a polar bear sheds most of its fur during the coldest months of the winter.

.2. A desert rattlesnake enters an underground burrow on a hot summer day.

Explanation:

Homeostasis can be defined as the ability to maintain stability, equilibrium and balance in the inner body with respect to the changes occurring in the external environment. The maintenance of homeostasis is necessary for the organism to survive in adverse conditions. For example, temperature change.

A desert rattlesnake is maintaining the homeostasis with respect to the external environment by maintaining the temperature by entering the burrow. As if it remain exposed to the warm environment the body of the snake will get dehydrated.

the function of the protein macromolecule is to move things in and out of the cell and transport other molecules in the body. there are many functions of proteins. they are the basic building blocks of living things and are responsible for the growth and repair of body cells and tissues.

explanation: