For what resource might sessile animals compete?

Sessile animals compete for food, shelter (accommodation) and energy resources.

Explanation:

Sessile animals are stagnant animals (unable to loco mote) that fix to a place, object or other living species and take their nourishment form the surrounding or from the base to which they are attached.  

Competition arises when resources are limited. In such scenarios, a sessile animal compete for space, food, energy resources such as light etc. In case of sessile animals living in water, the major competition is for space and food only.  

organisms that are both used in toothpaste as well as cause malaria are protista and monera.

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.