Which of these is a biotic factor of an ecosystem?
a. the temperature of water in a stream
b. the amount of water vapor present in a rain forest
c. the bacteria that live in the intestine of a rabbit
d. the rocks that provide cover for a rattlesnake

Mitosis creates two identical daughter cells from one parent cell creates four nonidentical daughter cells from one parent cell is the most common type of reproduction for bacteria is the process by which male and female reproductive cells are created

The blue particles in this image are able to cross the cell membrane through simple diffusion. how will they be transported? outside the cell inside the cell o a. the substances will move directly across the membrane from outside the cell to inside the cell. b. the substances will move through channels in the membrane proteins from outside the cell to inside the cell. o c. the substances will move through channels in the membrane proteins from inside the cell to outside the cell. o d. the substances will move directly across the membrane from inside the cell to outside the cell.

Why are current extinctions of concern to enviromentalists?