Explain why the number of atoms of reactants must equal the number of atoms of products formed

Explain how carbon dioxide causes temperature to change on earth

Which term refers to similar structures that related species have inherited from a common ancestor? a. DNA sequences b. developmental organisms c. c. homologous structures d. punctuated equilibria

Which process must the cell undergo to have identical cells at the end of cell division? A. meiosis B. mitosis C. sexual reproduction D. gamete formation

How many chromosomes does a child inherit from his or her parents

What are the seven states that rely on the Colorado River as a water source?

Proteins can perform many different functions in living cells. One major function-acting as a catalyst for chemical reactions-can also be performed by what other kind of organic molecule? A.) cholesterol B.) phospholipids C.) glycogen D.) RNA

Blank interactions occur between individuals of the same species

Explain the main functions of the roots

TRUE or FALSE. | Because Jupiter is more massive than Earth, a ball dropped there would take longer to hit the ground.

Only 10 percent of the energy stored in an organism can be passed on to the next trophic level. Of the remaining energy, some is used for the organism's life process, and the rest is ...