Water is at 0 degrees Celsius. If we continue to remove energy from the water, what phase changed would occur? 1. melting
2. freezing
3. condensing
4. vaporizing

Creation of an unnaturally uniform sample to represent a diverse populationcan be avoided by: a. including only willing b. asking another scientist for .c. choosing only identical participants.d. selecting individuals at random.

What is the problem in this article? what solution does the article propose?

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.