Most of the energy in the United States comes from:

fossil fuels

hydroelectric plants

solar power

nuclear power

Why are phytoplankton essential to aquatic life zones? Select one: a. Filter pollution from water b. Provide basis of food chains c. Moderate water temperature d. Produce chemicals that can be used against predators

List 10 different ways that animals and plants increase their probability of successful reproduction.

What is plant cells made of

Which of Mendel's laws or principles states that gametes carry one allele for each trait?

Can a hospital be held liable for last names and Social Security numbers if the data is stored in a non-protected area

Why should a person who sells fish and fish aquaria learn about the excretory systems in animals?

A group of scientists are studying a crab. After comparing the crab to other crabs and testing its DNA, the scientists think they have found a new species of crab. What should they do next? They should test the crab's DNA again.

What is necrosis and giver examples

An is a useful metallic mineral that can be mined for a profit

Due to climate change, the range of malaria is expected to spread to areas where it was previously not a problem. Given this piece of evidence, predict what will happen to the frequency of the sickle cell allele in areas where malaria is introduced