Before organisms with nuclei evolved, life on earth consisted only of unicellular

A) eukaryotes.

B) fungi.

C) prokaryotes.

D) protists.

When reading a grid reference number corresponding to a grid on a map, you read the pair of numbers corresponding to the what corner of the square.

Contrast balanced and unbalanced forces.

What colors of light are absorbed by hydrogen gas

If someone smacked her thumb with a hammer what cents provides her brain with the information about the pain she feels?

Assume that the temperature, 40C, and volume of the gas, 6 liters, remain constant. At 2 atmosphere of pressure, there are 0.036 moles of the gas. Write an equation that describes the pressure on the gas in terms of the amount of gas.

A vitamin called folic acid is very important for neural tube development, which is the development of the baby's

Which vocabulary term is survival of the fittest

An object weighs 32 newtons. What is its mass if a gravitometer indicates that g = 8.25 m/s2?

At what stage of a reaction do atoms have the highest energy? a. reactant stage b. product stage c. transition state stage d. The stage of highest energy depends on the atom.

A moon with a mass of 6.0 x 10 kg orbits about a planet with a mass of 5.0x 10^24 kg. They are 4.0 x 10^8 meters apart What is the gravitational force between them? The answer is 1.