How does heat travel between objects that are in direct contact with each other

Phytoplankton are essential because they produce which of the following? A. oxygen B. nitrogen C. sulfur D. phosphorus

How are individual atoms of oxygen formed in the stratosphere? a. Individual oxygen atoms are formed when oxygen molecules collide with each other. b. Individual oxygen atoms are formed in the sun. c.

According to the nebular theory, a solar system begins when an interstellar cloud, containing approximately 75% hydrogen, 25% helium and traces of other elements, begins to form areas of higher concentration, or clumps.

Question 6 Which kingdoms have some organisms that can make their own food (autotrophic) ?

What does the prefix bio mean?

Where are the cell bodies of lower motor neurons located?

is Earth an open system or closed system? Explain your answer and provide at least one example that occurred during the Precambrian era

The human genome comprises about 3 x 109 base pairs of DNA, and no two humans, other than identical twins, ever have been or will be genetically identical. Between any two humans, the amount of genetic variation is about 0.1 percent.

Which equation represents a reduction half-react

How many calories would be avaliable to a Cod