Indicate which statements are true of proteins. Select all that apply. Multiple select question. They act as receptors on cells' surfaces. They catalyze chemical reactions. They make up molecules that can transport oxygen. They make up one of the subunits, or building blocks, of triglycerides. They carry the instructions that control a cell's activities.

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.

The cluster of developing cells from conception until birth is called an

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.