What is the predominant hypothesis why animals only appeared in the fossil record about 3 billion years after life originated?

Which of the following is not a cause of mutation? A. Oncogenes B. UV radiation C. Errors during replication D. Harmful chemicals

The distance north or south from the equator

What should the Oreos and mice researchers do next to increase the credibility of their research?

Describe what occurs during activation of the lac operon.

What would happen if our bodies could not metabolize glucose

What must happen before the cell can go through mitosis? Interphase.

Belle's grandfather lives in a region where the temperature drops below 0*F at night. When belle visited her grandfather, they hiked up a hill. Belle noticed that a lot of rock had cracks in them.

The genetic condition of an organism that has two identical alleles for a given trait.

Which level of biological classification is the lowest level that butterflies

What might happen if a continent stops rifting apart?