Which has a better chance of becoming a fossil: a clam or a spider?

Diffusion and osmosis are forms of passive transport

Explain what a zygote is. use the terms egg cell, sperm cell, and fertilization in your explanation.

Match the correct terms to their descriptions a system in which only energy but not matter is exchanged frozen water in snow part of geosphere that includes only soil a thin layer between the troposphere and the stratosphere cryosphere tropopause closed system pedosphere