Who recognized that different layers of rock contained unique collection of fossils?

Which has the greatest impact on the rate of photosynthesis?

If all the stars in the universe were the same distance from Earth, we would see how each star's brightness compares with all the other stars. This is the A. absolute magnitude B. parallax C. redshift

Cell division occurs as part of which process?

Which organisms are most closely related? A. Buteo lineatus and Buteo platypterus B. Cyanocitta stelleri and Polysticta stelleri C. Carpodacus mexicanus and Icterus galbula D. Elanus leucurus and Pandion haliaetus

Over the last 540 million years, icecaps covered at least one of the Earth's poles during three intervals. When were those intervals

He wanted to observe cells in the fish's eye, but he saw nothing. Explain why.

Which technology has allowed for exploration beyond our solar system?

Which important property of DNA did Friedrich Miescher discover? -It is made partly of sugar molecules. -It has a double-helix structure. -It is three-dimensional. -It is found in the nucleus of a cell.

2. What is meant by predation? What is the relationship between a predator and a prey?

Sex-linked recessive disorders are most often passed from mother to sons