Which scientist most strongly supported the idea that evolutionary changes occurred because there was a need for them

how does the size of the sun and its distance from Earth compare to the sizes and distances from other stars

Do viruses respond to stimuli in order to maintain homeostasis

03]The water in a location is tested regularly to identify contaminants. The nitrate levels in the water from 1994 to 1997 are shown in the table below. Years Nitrate level in water (in mg/L) 1994 8.5 1995 12.2 1996 9.7 1997 7.

What is the growth of the plant embryo when it breaks out of the seed

What are female cells called? What are the male cells called?

Describe structures common to most leaves.

If a normal size cell divides yo can assume that

Alice is examining the transverse section of a stand under the microscope. She observes the vascular bundles are in a concentric pattern. What type of plant is she looking at

Which lymphocytes act as the bridge between the cellular and humoral responses?

Carbon most often makes what kind of bond with other elements?