Which are the two main sources of dissolved oxygen in the ocean? A) surface air and ocean plants B) Warm water vents and Earth’s core
C) Underwater volcanoes and earthquakes D) Animal respiration and decomposition

What is the name of the type of cell division that occurs in the prokaryotic cell cycle

The blue particles in this image are able to cross the cell membrane through simple diffusion. how will they be transported? outside the cell inside the cell o a. the substances will move directly across the membrane from outside the cell to inside the cell. b. the substances will move through channels in the membrane proteins from outside the cell to inside the cell. o c. the substances will move through channels in the membrane proteins from inside the cell to outside the cell. o d. the substances will move directly across the membrane from inside the cell to outside the cell.

All ova contain sex chromosomes corresponding to: x y xx xy