What is a part of the digestive system that physically digests food?

What is the issue with fitting viruses into the classification system?

What is the most powerful respiratory stimulant in a healthy person? what is the most powerful respiratory stimulant in a healthy person? arterial blood ph arterial blood oxygen level oxygen needs of cells arterial blood carbon dioxide level?

How many stages are in meiosis ii?

Once the DNA of a person is copy it can be compared to the DNA of other people by using

Every time energy is transferred in an ecosystem, potential energy is lost. A) as heat. B) due to weather. C) because some animals die. D) when it is recycled back to producers.

How do you call a prokaryote kingdom that typically live in oxygenated environments, and are not as adapted to harsh environments as the other prokaryote kingdom?

Rosa has a vegetable garden. She places earthworms, which are decomposers, in the garden soil. What is Rosa most likely trying to do? A. prevent insects from eating the plants B. create usable food energy for the plants C.

A transposable element (TE), or transposon, is a __ sequence that can change its __ within a genome, sometimes creating or reversing mutations and altering the cell's __.

How a biologist's reseach can proceed from an idea to a published article

How many times do the nostrils of a frog open and close in one minute