Earths tropics have the most diverse ecosystems because they have

a. the most invasive species

b. very little competition

c. stable levels of moisture

d. many primary disturbances

Which period occurred 360 to 286 million years ago? 1. Cambrian 2. Carboniferous 3. Devonian 4. Silurian

What happens to the force of gravity when the distance between two objects decreases?

After the experiment, scientists organize and _the data?

Describe how adh secretion maintains plasma osmolarity levels during dehydration and water loading

Which of the following is NOT a layer of the skin? dermis epidermis endodermis basal cell layer

The difference in the concentration of a substance from one location to another is called a

Which statement is true about nitrogen and oxygen? A. They make up about 99.9% of the human body B. They are both used to make water molecules C. They are both made of protons, neutrons, and electrons. D. They both contain no subatomic particles

Time sensitive: What plants or herbs (or berries) calm snakes? need to know.

The hydrosphere is predominantly made of A. gaseous air. B. frozen water. C. solid rock. D. liquid water.

A patient has diabetes a disease that causes high blood sugar levels which macromolecule will a dietitian monitor most closely in a patient that has the disease