Having two different alleles for a trait is called what?

What are spiracles? what are spiracles? openings into the tracheae of insects openings to the parabronchi openings into the alveoli of the lungs openings to the bronchi openings between the gills of a frog tadpole?

Which of these facts about wild boars is best supported by the evidence provided? Wild boars were brought to the United States by humans. Wild boars have quickly spread through the United States.

Which of the following is excluded under both the Limited Pollution Liability coverage form and Pollution Extension endorsement? a. Escape of pollutants b. Clean up costs c. Threatened discharge of pollutants d. Waste disposal leaks

2. The anther at the top of the stamen has _ contain numerous microspore mother cells that undergo meiosis to produce

True or false: replication is when you make an exact copy of dna answers

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.