You test a hypothesis by carrying out an experiment.
Answer:
B
Explanation:
This answer is the only one with something to do with geographical features.
Answer:

Explanation:
This is Xylose-glucose which is an Organic sugar - first isolated from <em>wood</em> ( xylose in greek, which it is named after ), and is a monosaccharide free within the aldehyde group. This is a reducing sugar.
You may know that oxygen, carbon, and hydrogen and base organic elements found in pretty much all organic substances.
Answer:
the prey of crabs would be positively affected, and the predators of crabs would take a negative effect to the extinction of crabs
Explanation:
small clams, starfish, snails, worms, squid, mussels, shrimp and small fish would all be positively affected if crabs were to go extinct, because all that is listed are part of a crabs diet, for both large and small crabs. the ones which would be negatively affected would be the predators of crabs, such as cobia, eels, striped bass, jellyfish, red drum, American eels, sharks, dogfish, sea rays, and smaller fish. they would take a negative affect to the extinction of crabs because as said before, these are all predators of crabs, so the extinction would remove them from their diet, forcing them to find other sources for food
Answer:
A .Viruses cannot evolve but can infect living cells.