Which phrase best describes a biogeochemical cycle?
a. the movement of a chemical substance between the solid, liquid and gaseous states of matter
b. the movement of a chemical substance between plants an animals
c. the movement of a chemical substance through the the biotic and abiotic parts of earth
d. the movement of a chemical substance through earths bodies of water

One function of the poly-a tail on eukaryotic mrna sequences is to the mrna be transported from the nucleus to the cytoplasm. prokaryotic mrna also has a poly-a tail. choose the best explanation of the prokaryotic poly-a tail. a. prokaryotic poly-a tails are composed of a different molecular structure compared with eukaryotic poly-a tails. b. prokaryotic poly-a tails have the same functions as eukaryotic poly-a tails, because this process is highly conserved throughout different species. c. prokaryotic poly-a tails aren't important, because prokaryotes don't have nuclei. d. prokaryotic poly-a tails have other functions,because prokaryotes don't have nuclei.

How long does it take a skateboarder going 6.0 m/s to come to a complete stop if she slows down at a rate of 2.0 m/s^2

Which hormone is used by both males and female?