Why are enzymes necessary?

A. to slow the rate of decomposition

B. to act as a catalyst in chemical reactions

C. to conserve the stored energy of a cell

Most organisms on earth get energy from the sun to your body. How does energy flow from the sun to your body?

How would knowledge of physical science be useful to a musician and photographer?

Fertilization generally occurs in the

The Earth's crust is divided into plates that move over the mantle and interact at plate boundaries. This modern understanding of movement of the crust is explained by the principle of superposition the theory of plate tectonics the theory of

The human population has exceeded 7.06 billion with the developing countries accounting for 97% of the growth. What factor does not account for population growth in these countries? A.) High fertility rates B.) Lower levels of education C.

With all his gear neil armstrong weigh 360 pounds on earth when he landed on the moon he weighs 60 pounds why

Is a lion is a carnivore?

The process in which nuclear division occurs

Which did Kepler notice about planetary motion that caused him to propose Kepler's first law of orbital motion?

1 Which statement about the relationship between an organism's traits and its genes is true? A. An organism's genes are a direct result of its inherited traits. B. Genes code for proteins that determine an organism's traits. C.