Organisms depend on nonliving things in an ecosystem. Which is a nonliving part of a river ecosystem? O A. algae
O B. minnow
C. water
O D. turtle

When water freezes, it . contracts expands

Which of the following is the best definition of aerobic respiration? o a. the cellular process that releases energy by breaking down glucose o b. physical activity that involves the repeated motion of large muscle groups o c. physical activity that increases heart rate and breathing rate o d. the cellular process that converts solar energy to chemical energy

Every early childhood education program should develop a