The Earth has always had oxygen in the atmosphere.

A) True

B) False

A purebred wingless red-eyed fruit fly is crossed with a purebred winged sepia - eyed fruit fly to produce F1 flies. A = wings a = wingless E = red eyes e = sepia eyes.

Which postion of two magnets results in the greatest repultion between magnets

What brings greater concentration of dissolved nutrients to the ocean floor?

A type of mecht weathering caused by water freezing and pushing openings in rocks farther apart is know as

Which of the following could result in secondary succession? a. the formation of a tall sand dune on a previously grassy beach b. a vast glacier in motion forming a U-shaped valley on its wake c.

What is a organism that makes their own food?

How many trophic levels are there in the following food chain? algae mosquito larvae dragonfly larvae - trout

If you were shipwrecked on the northwest shore of the sea of okhotsk, which of these physical regions would you most likely be closest to?

Why does the nucleus have a positive charge?

Why would the solution not be considered to be in equilibrium? The solvent molecules are not all located on the right side of the container. The solute molecules are not evenly distributed throughout the solvent.