What percentage of the air is nitrogen gas?

One major biotic factor that effects the health of coral reefs is

How do cells maintain water balance through osmosis? If a salt water fish is placed in a fresh water aquarium, water will leave the fish's cells. In the experiment, the only isotonic solution was the 10% salt water solution.

How is the gender of a baby determined

If nothing ever eats a hawk what might eventually happen to the energy stored in its body.

According to the video shown in class what happens when carbon Bonds are broken. A. a fire is created B. carbon will not combined with other elements C. Energy is released D. energy is stored

What trophic level in a sentence?

Bacteria are organisms that reproduce asexually how is this better for them them reproducing sexually

Part A What is a telomere? What is a telomere? the mechanism that holds two sister chromatids together the ends of linear chromosomes the site of origin of DNA replication DNA replication during telophase

Which facility is the most appropriate ems destination for a patient with sudden cardiac arrest who achieved return of spontaneous circulation in the field?

A topography map is used to study the changes in vegetation associated with different elevations. Which individual most likely uses them for this purpose? a scientist a businessman a government official a construction engineer