What does natural selection mean?

What would happen to the oceans if continental and oceanic crust had the same density?

The first commercial application of genetic engineering was the use of bacteria to make insulin, a medicine needed by diabetics.

A gel-like substance is placed in a glass dish on top of a heat plate turned on low. The substance at first does not move. You add five drops of water and wait two minutes. All of the sudden, the substance begins to move around the glass dish.

What organelle controls a cell's packaging, storage and shipping functions? a. endoplasmic reticulum b. ribosomes c. Golgi apparatus d. vesicles

What flows during gene flow

Assuming that there are only two alleles at a given locus, if the frequency of one allele is 0.6, what is the frequency of the other allele? A. - 0.6. B. 0 C. 0.4 D. 0.6 E. 1

How do cells acquire positional information about their location in a developing embryo?

Which kind of solution is the concentration of solutes the same inside and outside if the cell

Identify the two primary fluids found within the eye. which one of these fluids provides nutrients to the rest of the eye

How are microscopes advantageous to scientist? name two examples when a biologist (or other scientist) may use a microscope?