One way that enables blood in your leg veins to return to the heart in spite of the downward pull of gravity

How are quantitative and qualitative data different?

Deforestation kills many organisms that produce oxygen. What oxygen-producing organisms would remain if all the forests were destroyed? A. Rocks B. Humans C. Plankton D. Animals

Why is the food web important to the world

Why are swollen lymph nodes a sign of infection? O A. Memory cells are stored in the lymph nodes. O B. Infections cause increased lymphocyte production. O C. Bacteria and viruses mostly attack the lymph nodes. O D.

A strand of dna. Consists of thousands of smaller, repeating units known a

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

What is the basis unit of structure and function of all living organisms?

Wrinkles and sagging skin in elderly individuals are the result of