Polaris is 4.07 x 10^15 km from earth. Calculate the distance in light years.

Which statement best describes why food webs consist of many food chains put together? A. All animals are carnivores. B. All living things eventually die and decompose. C. Most organisms eat more than one thing. D.

A drain cleaner consists of sodium hydroxide and aluminum. When the drain cleaner is added to water, bubbles of hydrogen are produced, and the solution becomes very hot.

In humans, dark hair (D) is dominant over blond hair (d). If a heterozygous dark haired man had a son with his blond haired wife, what would the probability be that the son would have dark hair like his father?

6. Which is a function of nephrons? They release urine from the body. They filter water and solutes from blood. They release ADH into the blood. They filter perspiration from sweat glands.

Leaders should employ all available active and passive surveillance measures to

What roles do DNA and chromosomes play in the coding of instructions for the inheritance of traits, or those traits passed from parents to offspring?

Why does a grasshopper lay over 200 eggs

How does light intensity affect oxygen production?

Which organism would be classified as an echinoderm?

Hank has a very detailed model of the solar system where each planet is made out of granite rock. Since his little sister really liked the model, he spent two weeks in his dad's workshop building her a Styrofoam copy.