The tiny hollow air sacs in the lungs where gas exchange takes place are the a. alveoli b. lymph nodes c. capillaries d. bronchioles

What are the two components of science?

Prokaryotes that brea down dead organisms and wastes are called

Which characteristic would a child not herit from one or both parents

Describe two main sources of genetic variation.

Each part and area of the ear have specific functions in the hearing process. In which of the following parts of the ear are sound waves changed into a signal the brain can understand? A. inner ear B. none of these C. middle ear D. outer ear

What two genotypes would show as a dominant trait?

Lymphoma is a disease that prevents the lymph nodes from functioning properly. which would be a result someone having this disease a) they would be more likely to be harmed by common viruses b) they would be less likely to catch a cold or a flue c)

When energy is realesed during a chemical reaction what is it called?

The atmosphere contains tiny solid particles called

An uncomfority represents