What is the name of the one - or two-letter representation of an element?

A chemical symbol

B atomic number

C group symbol

D valence symbol

What is the correct order for the following events in excision repair of DNA? (1) DNA polymerase I adds correct bases by 5¢ to 3¢ replication. (2) Damaged bases are recognized. (3) DNA ligase seals the new strand to existing DNA.

What are the two parts of the ear that normally contain a fluid?

What effect will the addition of animal waste and decayed plant matter have on the soil and land?

Most of the current human population growth is found in (developed / developing countries

What are some common themes of biology?

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.