Explain how the allele for sickle cell disease, which is a harmful allele when a person is homozygous, can be beneficial when a person is heterozygous.

Which chemical bond most likely stores the most energy

Ecology - Describe how environmental changes may produce behavioral, physiological, morphological, or adaptive responses in organisms?

Warming ocean temperatures affects the biodiversity of organisms. Which of the following disruptions would you expect to see in a population of northern whales as a result of warmer ocean water?

Imagine discovering three different bacterial species on a meteorite. Each species contains genetic material that is not DNA, but the genetic material of each species contains four bases. Each species has a different number of amino acids.

Where do we get our genetic information from

What happens at level IX on the mercalli scale?

Describe at least one property that occurs because of the polarity of water

When apples were introduced to North America some individuals of a species of maggots that fed on hawthorns began to grow in apples.

What would happen to the skin cells if mitosis did not take place

4. What are the building blocks of DNA?