Which of these would be directly related to the science of ecology?

Why are pipes bursting in the in extremely cold weather?

Particles vibrate in a rigid structure and do not move relative to their neighbors.

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a. the mitochondria b. the nucleus c. the vacuoles d. the endoplasmic reticulum