They lack chloroplasts, but have thylakoid membranes, and are thought to have been among the first organisms on earth.

The specific heat of ice is 0.5 calories/gram°c. 20 grams of ice will require ll calories to raise the temperature 1°c. 05

How do living things obtain phosphorus

Cells must be in osmotic equilibrium with their surroundings environments because if they swell or shrink thier membranes will rupture