During exhalation, the chest cavity ____ in size, which causes air pressure in the lungs to ____
a. increases; increase
b. decreases; decrease
c. increases; decrease
d. decreases; increase
e. expands, cause pressure
D
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Spermatophytes are
A. all plants that produce sperm. B. all living and fossil seed plants. C. all plants that have tracheids and phloem. D. all woody plants.E. all plants with a sporic life cycle.
Prokaryotes were split into two domains based on differences in
a. staining characteristics. b. metabolic capabilities. c. rRNA sequences. d. cell membrane properties. e. cell wall composition.
The accompanying figure is a micrograph of what kind of tissue?
a. cardiac muscle b. skeletal muscle c. nerve tissue d. cartilage e. dense connective
Cellulose-digesting microorganisms live in the guts of termites and ruminant mammals. The microorganisms have a home and food, and their hosts gain more nutrition from their meals. This relationship is an example of:
a. predation b. herbivory c. parasitism d. mutualism e. commensalism