What structural level is represented by the coiling of the protein chain backbone into an alpha helix?

To reduce erosion On steep slopes people can A plant vegetation B insert drainage C build walls D all of the above?

What is the function of neurotransmitter

Which kind of media contains a dye or other indicator that responds to metabolic reactions during growth to identify a specific organism?

If we can decrease the rate or halt aging altogether, what might be a consequence?

Children's intakes of which nutrients typically fall below recommendations? a. vitamin d and iron b. vitamin a and vitamin c c. fat and fiber d. sodium and potassium e. vitamin b6 and protein

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.