External cell membranes function to

a. Create a surface for chemical reactions

b. Produce ATP

c. Join cells together

d. Protect the cells internal environment

What is the difference between self-pollination and cross-pollination?

Which statement about the changes in the history of life on Earth is correct? A. The theory of plate tectonics explains why the early oceans contained more iron than the oceans contain today. B.

What happens if both sister chromatids move to the same pole

How could you separate rocks from a bucket of sand?

The National Weather Service has issued three tornado watches so far this month. is this an example of weather or climate? I've lived here for 10 years, and I've never seen the conditions so dry.

The diagram shows one step in the process of protein synthesis. A diagram shows one step in the process of protein synthesis. In this step, the D N A is being copied to m R N A.

The primary language deficit shown by children with autism spectrum disorder is in the area of Syntax (grammar) Vocabulary (words known or used) Pragmatics (appropriateness) Spelling (written) ?

in pea plants purple flower color (P) is dominant to white (p) using this information list the genotype and phenotype of the following individuals.

What is the definition of sodium potassium pump

What latitude are most lightly to see glaciers