Why do cells have plasma membrane?

A. To separate the inside of cell from its environment

B. To separate proteins from the nucleus

C. To define the size of cell

D. To distinguish plants from animals

Hematopoiesis occurs in which of the following? liver bone marrow kidneys central nervous system

In a real cell, what does the dna molecule do before it unzips?

What best describes scientist who contributed to the current body of scientists who contributed typo the current body of scientific knowledge

Which population would be most immediately affected by the removal of the lizard population?

Which of the following could NOT be the formula for a carbohydrate? C6H12O6 C8H16O8 C10H20O10 C11H11O22

Disorder affecting one or more nerves where they exit the spine

What senses is associated with the temporal lobe?

What are 2 ways nitrogen becomes usable to plants, humans and animals?

What factor has the greatest effect on species diversity

A scientist inserts a radioactively labeled DNA molecule into a bacterium. The bacterium replicates this DNA molecule and distributes one daughter molecule (double helix) to each of two daughter cells.