This is a star that is generating light and heat by the conversion of hydrogen to helium by nuclear fusion in its core.

How do spiders breathe?

Why is the sequence of DNA important? A. It is used to create copies of cells. B. It makes sure there will be no mistakes in the information. C. It determines protein structure. D. It is needed to build new kinds of organisms.

Templet stresses the importance of understanding the entire Mississippi River system. What would Templet say about a proposal to build more levees as flood control for New Orleans?

Is it possible to be a chordate and not have a backbone

This is the loss of water from the leaves of a plant

A client undergoing corticosteroid therapy is admitted with a peptic ulcer, osteoporosis, and hypertension. which medication may have caused this condition?

Why do most leaves appear green

What is the first word in a two word name of an organism

When a snail is touched it retreats into its shell this is an example of? a. Reproduction b. response to a stimulus c. Metabolism d. a unicelluar organism

What is princess leias Death Star cell number in star wars.