HELP ASAP ! A seal and a shark eat the same kind of fish.

What ecological interaction describes the relationship between the seal and the shark?

A) Predation

b) mutualism

c) competition

d) commensalism

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In this case, the statement that people who exercise for an hour may have lower cholesterol levels is .

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.

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes