Why do cells have a plasma membrane?

to separate proteins from the nucleus

to define the size of the cell

to separate the inside of the cell from its environment

to distinguish plants from animals

All of the following are changes seen in the respiratory system with aging, except Select one: a. Decreased vital capacity b. Decreased maximum minute ventilation c. Increased deadspace d. Decreased inspiratory reserve volume e.

How to determine how long a fragment that's gone through PCR would be

10. Brown pelicans are fish-eating birds. As a result of an El-Nino event, the population of brown pelicans in southern California declines.

He regrowth of a forest after a devastating fire is an example of what process? a tertiary succession b intermediate succession c primary succession d secondary succession

At what stages of cancer is a plant-based diet most likely to be effective?

Un ejemplo de mitosis en el trabajo es una hoja que: A) se vuelve amarilla. B) Creciendo tomando dióxido de carbono c) Hospedar una oruga

During transpiration, water exits the leaf via the A. mycorrhiza. B. stomata. C. roots. D. tracheids.

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 __.