If an allele makes up one half of the frequency of a population's allele for a given trait, its allele frequency is?

a. 100 percent

b. 75 percent

c. 50 percent

d. 4 percent

What layess compoce erarth core

Obesity acts as an important risk factor for type 2 diabetes mellitus by

Why planets near opposition rise in the east?

Describe the end products of a single episode of meiosis?

7. What does it mean for a species to be in stasis?

Transport of materials into a cell against a concentration gradient, from low to high, requires A) water. B) energy. Eliminate C) osmosis. D) a passageway.

As ocean water in a tide pool warms and evaporates, the remaining water becomes a. cooler. b. saltier. c. calmer. d. darker.

Drake is comparing time people spend playing games on Xbox versus Playstation. In his study, individuals ages 10 - 15 are given Xbox's and individuals ages 16 - 25 are given Playstations.

How do scientists obtain knowledge about the world? Check all that apply.

What would the temperature of the surface be if the Earth did not have an atmosphere?