The white blood cells ___.

A. Are the major infection fighters in the blood stream

B. Are the chambers of he heart

C. Carry oxygen from the lungs throughout the body

D. Are the enzymes which facilitate digestion

How does meiosis 1 differ from meiosis 2?

How do the resistance and the capacitance of the cell membrane change?

In tomatoes, two alleles of onegene determines whether the plant has purple (P) or green (G) stems, and a separate, independent gene determines whether the leaves a "cut" (C) or "potato" (Po).

Why do you think it's important that cell membranes are selectively permeable?

List the two things that Mendel's principles of genetics required in order to be true.

The gametophyte is the dominant stage of the life cycle in both mosses and ferns. in both mosses and ferns, moisture is required for sperm to reach the egg.

Dogs are an example of A common ancestor Selective breeding The natural pace of evolution Extinction rates rising

Yellowstone National Park has an average of about 4500 bison living in it. The park covers 3472 square miles. What is the population density of bison living in Yellowstone?

The original regimen known as Pasteurization consisted of: 1. Heat at 100 degrees F for 60 minutes 2. Heat at 98.6 F for 30 minutes 3. Freeze at negative 32 degrees C for one hour following dessication 4. Heat at 62.8 degrees C for 30 minutes

Seedless plants can be vascular or non-vascular. True or False