Polar bears feed on seals. So, polar bears and seals share a. Climate change has caused ice caps to melt in colder regions where polar bears live. This change has caused them to hunt less. This situation will lead to.

Which type of air has a relative humidity of 100 percent?

Antigens are Multiple Choice something made by a white blood cell to destroy a pathogen. membrane receptors on B-lymphocytes. disorders involving overactive immune systems. something that an antibody or T-lymphocyte binds to.

Which of the following sentences are correct? (1) for millions of years dinosaurs ruled the earth; they roamed freely over the land and through the oceans.

A third-world country village gets a monthly air drop of white rice. The amount of rice is enough so that every villager never has a hungry stomach. Which of the following is a concern related to nutrition? The rice may be poisoned.

On the earth, "down" means toward the earth's ...

All living things are made of cells. What might be a major difference between cells that are found in human skin and human nerve cells?

I live in wet land, I respire through roots

What do scientist think causes the movement of earth's plate?

If a normal human cell has 46 chromosomes how many chromosomes will it's daughter cell have?

Differentiate between sexual and asexual reproduction