Natural selection can be best defined as the

DNA from one species differs from the DNA of another species in its a) base ratios b) sugars c) phosphate groups d) all of the above

A thousand year old forest is destroyed by a wildfire. Over time, grasses, herbs, and small trees slowly begin to grow. This is an example of

If a gene has only one allele, how many traits can be produced

Which of the following are basic components of the Hardy-Weinberg model? a.) Allele frequencies, number of individuals in the population b.) Frequencies of two alleles in a gene pool before and after many random matings c.

A small monster colony has a large amount of monsters that have an abnormal amount of horns. Why might this trait be so prevalent in this colony?

A plant cell contains 78% water and 22% sugar. It is watered with a solution of 76% water and 24% sugar. What will happen to the percent of water inside the plant cells?

Which of the following explains why your body may contain a carbon atom that was present in George Washington's body in 1776? A. Carbon moves in a one-way direction through living organisms only. B.

Eukaryotic cells contain organelles that harvest energy from organic compounds to make atp. atp is the main form of energy used by cells. which cell organelles are responsible for making most of the cell's atp?

What occurs during meiosis that does not occur during mitosis. A.) Chromosomes are passed to offspring B.) A cell divides in half C.) The chromosome number is divided in half D.) Two sex cells combine

Which scenario would most likely NOT lead to speciation? A) A flood washes a few lizards or insects to a new island. B) Neighboring herds of elk misinterpret each other's mating behaviors, causing them to fight instead of mate.