Which terms best describes our atmosphere?
a. constant, stable, unchanging
b. layered, non-interactive, static
c. dynamic, interacting, constantly changing
d. static, stable, similarities in the layers prevent interaction

All organisms contribute some water to the water cycle by conducting

What is the function of the root cap? a. extra-absorbent cells in the root cap absorb more water and nutrients b. protect the meristematic area of the stem c. contains sensors for sunlight d. increases surface area of the root

Which of the following would involve looking at different structures of organisms and comparing how similar they are? a. vestigial structuresb. radiometric datingc. homologous structures