How many nitrogen bases are needed to specify 4 amino acids? a. 3 b. 6 c. 9 d. 12

The energy of blowing wind can be harnessed to create electricity. why is wind considered a renewable energy source? a) wind does not cause destruction of the environment. b) wind turns the blades of a windmill that creates electricity. c) wind provides only a very small amount of electricity to the united states. d) wind comes from atmospheric conditions that are available indefinitely.

Which of these transport mechanisms moves glucose from the blood into a cell? active transport diffusion facilitated diffusion osmosis

What property of water provides for appropriate sugar, salt, and amino acid levels to be present and carried in the blood of animals to be delivered to cells