Fish do not freeze in the winter time but rather liver under the ice of the lake this is because

Name the type of chemical that speeds up digestion

Atypical human cell is approximately 12.00 μm in diameter and enclosed by a membrane that is 5.000 nm thick. (a) what is the volume of the cell including the membrane? (b) what is the volume of the cell membrane? (c) what percent of the total volume does its membrane occupy? to simplify the calculations, model the cell as a sphere. enter your answers using four significant figures.

Which type of neuron stimulates muscles to contract?