Examine how photosynthetic prokaryotic cells changed the atmosphere of early Earth

Which of the following is a pattern of biography that supports the theory of evolution? a. analogous structures show that living in similar habitats doesn't lead to similar adaptations. b.

During the winter, many species of amphibians and reptiles go into a hibernation-like state called overwintering. They eat little or no food, slow their metabolism and breathing rate dramatically, and most of their bodily functions shut down.

What substance is a source of chemical potential energy that animal cells can use

I need an example of an experimental group

The reactions of the calvin cycle are not directly dependent on light, but they usually do not occur at night. why?

Why is dna an important macromolecule

Why / how does dna become more compact

6. Would there be a net flow of water in one direction in the following situations? Explain your answers. a. Outside the cell: 25 M NaCl. Inside the cell: 25 M NaCI.

30% of the bases in a cricket are cytosine (C). What percent are T?

Why are elements and compounds classified as pure substances?