If the ability to roll one's tongue is dominant (R) and the inability to roll one's tongue is recessive (r), what would the genotype be for someone who can not roll their tongue?

How did the chemicals in Earth's prehistoric surface become alive

What characteristics are pass down from parents to children

How does wavelength affect the perception of light?

Natural resources are materials from the earth and are either renewable or nonrenewable. Some of these resources are recoverable after their first use. An example of resource recovery is A) mining of coal. B) extraction of petroleum.

How do scientists use weather variables to describe and predict weather

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.