How does base pairing differ in rna and dna?

Explain why there is a limited number of organisms in a food chain

11. Which of the following is NOT an example of an autonomic reflex? A) extension of the leg when the patellar tendon is struck B) rise in blood pressure when shifting from a sitting to a standing position C) increased movement of the stomach when

Who came up with the idea of natural selection

In a population of birds some individuals are born with thicker, stronger beaks than others. This is a trait that is inherited. The thick beak birds are able to eat an indigenous nut that has a thick shell.

If two species of bacteria use glucose as an electron donor but species A uses iron as the final electron acceptor and species B uses oxygen, then approximately how much glucose will species A need to maintain the same metabolic rate as species B?

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.