What is speciation a result of

A. Allele frequency within a population remaining the same

B. New alleles forming because of mutation

C. Random, chance event

D. Change in an existing species environment

What basic elements comprise most of the macromolecules?

What is the purpose of the radiosonde?

Match the terms to their correct definition. A group of organisms of the same species that live in an area. All of the living and nonliving things in a particular area. A complete living thing that carries out the processes of life.

What role did scientific methods, such as communicating results, play in the discovery of the structure of dna?

A light wave traveling in a straight line suddenly changes direction. Which of the following could have caused this change?

What are the bundles of chemicals in our body called?

Jake lives in the Northern Hemisphere. His cousin, Adriane, lives in the Southern Hemisphere. If it is March 20 (spring equinox) where Jake lives, which time of the year is it where Adriane lives? A. spring equinox B. fall equinox C.

Facts and data are objective, while and opinion is

Which process in the water cycle results directly in snow?

What is the difference in structure of the antennae and antennules?