Q1) Describe three ways food chains can be disrupted

Which sentence in the passage describes the benefits of sexual reproduction?

What is a gene? A. the different forms of a trait B. a segment of DNA that is the basic unit of heredity C. the appearance or characteristics that are seen in an organism D. an organism's allele combination

Which is true of oxidation? a) It is a physical process b) No change occurs in the makeup of rock c) Rocks weather at different rates d) Water freezes in cracks in rock

At the site of gas exchange in the lungs, where does the oxygen move? O2 moves from the alveoli to the white blood cells. O2 moves from the white blood cells to the alveoli. O2 moves from the alveoli to the red blood cells.

A nurse is developing a plan to teach a mother how to reduce her infant's risk of developing otitis media. which direction should the nurse include in the teaching plan?

A drought would most likely directly affect which type of power plant

Traits that are controlled by more than one gene, such as human height, are referred to as

What type of mice did scientists study to investigate gene expression?

Which of the following features would be most affected by weathering?

Other than water, what else expands when frozen?