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which two factors would a biologist need to know to identify an ecosystem?
a the biotic and abiotic factors
b the plants and animals in the area
c the weather and climate in the area
d the population and individuals that live then

which organism holds the largest amount of energy in a most ecosystem?
a the biotic and abiotic factors
b the plants and animals in the area
c the weather and climate in the area
d the population and individuals

Which describes radioactive decay of a substance

Which process can increase the rate of greenhouse gas emissions into the atmosphere in response to a decrease in albedo

Cold case files recently began re-investigating an old murder case. the murder took place in the park; a young man, james, was hit over the head with a brick and killed. police suspected the jealous former boyfriend of james' wife, karen. whoever killed james may have washed their hands in a near-by bird bath as detectives found blood in the bird bath. since the murder took place before dna fingerprinting was available, the suspected killer, ronnie, went free. detectives are now reviewing the blood evidence using dna fingerprinting. based on the dna fingerprints of all possible suspects, who is james' killer?