*urgent due by midnight* (biology 1) 1. When resources are aplenty for water fleas how do they reproduce?

2. When resources are scarce, how do they reproduce? Why?

3. What is the height difference in yarrow at a low vs. high altitude? Why?

4. How do short tandem repeats in DNA affect the length of dog faces ?

5. Where specifically do people who carry F508, resist bacterial infection?

i think it would be b. tissue because an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.

to figure the total magnification of an image that you are viewing through the microscope is really quite simple. to get the total magnification take the power of the objective (4x, 10x, 40x) and multiply by the power of the eyepiece, (usually 10x)