Which statement describes the chemical released by the coral and explains its effect is region 12
O The chemical is a pheromone that attracts nearby goby fish so that they can reproduce.
O The chemical is a toxin that causes goby fish to swim away from the region.
O The chemical is a pheromone that attracts goby fish that eat the seaweed on the coral.
O The chemical is a toxin that is spread by the goby fish to kill the seaweed.

Molecular models of two different substances are shown below. in the molecule on the left, the oxygen atom pulls on electrons more strongly than the hydrogen atoms. in the molecule on the right, the two oxygen atoms pull on the shared electrons with the same strength. water molecule, h,o oxygen molecule, oz when the two substances are put in the same container, they do not attract each other. why does this happen? a. they both contain oxygen. b. one is polar and one is nonpolar. c . they are both polar. d. they contain different elements.

Ture or false evidence for evolution includes millions of fossils

How many chromosomes are in a human gamete?