21. Sabrina wants to test which brand of popcorn pops the most kernels. She picked a Giant Eagle brand, Orville Redenbacher, and Pop Secret All three bags started with the same number of kernels She popped
each for 3 minutes in the same microwave and then counted the number of kemels left over What is her
independent variable?

Which is an example of a decomposer? a. bear b.algae c.grass d.bacteria d bacteria

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?

Number and variety of living organisms includes genetic, species, and ecological types