What is the principle of natural selection

Which of the following is not currently polluting Earth's water? A) trash B) fertilizer C) sewage D) carbon monoxide

What is the difference between Density Dependent and Independent Factors?

Why will a stone sink in water but a mosquito will not?

How many chromosomes do you get from your parents?

Which condition is a biotic factor of an aquarium ecosystem? A) Algae growing on the glass. B) Gravel on the bottom of the aquarium. C) Amount of oxygen in the water. D) Temperature of the water.

What happens to the tempeture as you travel from the surface of the earth to the center

The major effect of genetic drift is: A) The reduction in genetic variability B) An increase in genetic variation to accommodate changes in abiotic conditions C) no change in population size but an increase in favorable alleles D) a reduction in

List some ways of plant cells are made of cellulose

Prokaryotic cells have a simpler structure than eukaryotic cells. Evidence shows that eukaryotic cells evolved from prokaryotic cells. Some might argue that prokaryotic cells are less important than eukaryotic cells.

Which of these facts about wild boars is best supported by the evidence provided? Wild boars were brought to the United States by humans. Wild boars have quickly spread through the United States.