Which of the following is found only in plant cells?
a. cell membrane
b. ribosomes

c. mitochondria
d. cell wall

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

In which way are mercury and venus similar? they both rotate from east to west. they are both small and rocky. they both have thick atmospheres. they both are similar to earth in structure.

How does science influence the decisions made about social, economic, and political issues?