are freshwater ecosystems with high biodiversity that are also declining in numbers. A. Lakes
B. Oceans
C. Wetlands
D. Rivers

What happens when the cell copies its chromosomes

The finches on the galapagos island were similar in form except for variations of their beaks. darwin observed that these variations were useful for: attracting a mate defending territory building nests gathering food

Which best describes a benefit of using dna technology in medicine? a) medicine can be produced in mass quantities. b) medicine can be distributed at a reduced cost. c) medicines have fewer side effects. d) medicines are resistant to antibiotics.