The microscopic organisms at the base of the marine food chain are known as

a. primitive life.

b. plant life.

c. terrestrial animals.

d. phytoplankton.

Which is the best description of a wave? a disturbance that transfers energy energy that makes particles move any type of matter that vibrates back and forth a disruption causing the transfer of matter

Epidermal cells contain few, if any chloroplasts. How does this affect the amount of light reaching the mesophyll?

During what stage of embryonic development in plants do the cotyledons begin to appear and rapid cell division takes place?

What is the most abundant of the four major bioorganic molecules found in natural steroid hormones & cell plasma membranes? a. Lipids/Fatty Acids c. Nucleic Acids b. Amino Acids d. Polysaccharides

Which is not an effect of smoking on the cardiovascular system? it contributes to atherosclerosis. it increases the blood's tendency to clot. it increases blood cholesterol. it increases the size of arteries and veins?

Is water alive according to the 8 characteristics of life?

A joint condition that is characterized by the breakdown of cartilage is

Why would freezing a balloon full of air causer to shrivel

Fun facts about cytoplasm?

In genetics, what is a trisomy?