How many genes influence a polygenetic trait?

What describes using organisms that were only alive during a specific time period to estimate the unknown age of items? Radioactive dating Law of superposition Relative dating Index fossils

As you hike from the highest elevation to the lowest elevation, you find three different species of related mice. None of them are found at the same elevation, and the vegetation changes at each elevation level.

What tool is used to determine the precise location of radioactively labeled DNA

The production of energy using wind is a renewable source of energy. Its environmental impact is best describe by which of these?

If an elephant's cell were to lose ability to perform aerobic cellular respiration, would would most likely happen? A) the cells would switch over to anaerobic respiration and the elephant would be fine.

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.