Cnidarians, such as __________________, have muscle fibers
A. clams
B. earthworms
C. jelly fish
D. sea corals
C
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Which organelle completes protein modifications and packages the protein for export?
a. lysosome b. Golgi body c. peroxisome d. smooth ER e. rough ER
This illustration shows
a. cytoplasmic division in a plant cell. b. cytokinesis via a contractile ring mechanism. c. how chromosomes are dragged to the poles. d. chromosome condensation. e. an animal cell in interphase.
Which of the following immune system components has been identified in almost all multicellular
organisms? a. bone marrow b. phagocytes c. antimicrobial peptides d. T-cells e. memory cells
People who wash their hands frequently during cold season typically have fewer colds than those who do not. This observation suggests cold viruses can be transmitted by
A. fomites. B. mechanical vectors. C. biological vectors. D. direct contact. E. both direct contact and fomites.