Birds evolved from

A. insects.

B. a common ancestor with reptiles.

C. amphibians.

D. mammals.

Natural selection argue claim evidence reasoning answer

Which of the following is the best example of how factors within a person's environment can influence their personal health? A. eating too much sugar increasing a person's risk of diabetes B. regular exercise decreasing a person's cholesterol C.

The - - states that the cell is the basic unit of a living thing

The rock cycle is not used to illustrate

Explain why it can be difficult to definitively diagnose a disease.

Which statement best describes the relationship between activation energy and rate of reaction? O Increasing the activation energy can increase the rate of a reaction. O Reducing the activation energy can increase the rate of a reaction.

Definition: this is a haploid cell with half the reproductive information from the parent.

Does a cell use energy when molecules diffuse in or out of the cell? Why?

Below is a list of possible challenges. Check all errors that you mentioned in your answer. Traits other than beak type might affect natural selection. It could take many generations to observe adaptions to a population.

A farmer dug a well but did not find any water Which reasons most likely explain why the farmer did not find water? Check all that apply.