The theory that all living organisms share the same basic genetic components The theory that all living organisms are made of cells

The theory that complex cells evolved after primitive cells engulfed bacterial cells that continued functioning

The theory that organisms function best when their internal conditions are maintained within narrow limits

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

lipid

explanation: