5. A variable is a possible explanation for a set of observations
anything that affects the outcome of an experiment
something unrelated to an experiment
the scientific question the experiment is answering

d. in sexual reproduction, offspring have more chromosomes than

either parent.

asexual reproduction results in offspring which are genetically the same as the parent organism (not counting a rare mutation). sexual reproduction produces a random mixture of the genetics derived from both parents

explanation:

the oceanic zone is typically defined as the area of the ocean lying beyond the continental shelf, but operationally is often referred to as beginning where the water depths drop to below 100 meters (328 feet), seaward from the coast to the open ocean.

explanation:

because they are eaten by the frog and the frog getseaten by the snake and the snake by the eagle