Which of the following groups represents the basal lineage(s) of vertebrates?
a. Lancelets
b. Tunicates
c. Hagfish and lampreys
d. Sharks and rays
e. Coelacanths
Answer: c. Hagfish and lampreys
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The body's non-inducible, preexisting ability to recognize and destroy pathogens or their products is called
A) adaptive immunity. B) innate immunity. C) phagocytosis. D) cytotoxic response.
All of the following are fungi except:
A) molds. B) Paramecium. C) Penicillium. D) yeasts.
The BEST way to protect yourself from the effects of radiation is to:
A) wear a suit designed to completely shield yourself. B) use time, distance, and shielding to your advantage. C) wear a lead suit and self-contained breathing apparatus. D) limit your exposure at an incident to less than 10 minutes.
When are sister chromatids separated?
a. metaphase of meiosis 1 b. anaphase of meiosis 1 c. anaphase of mitosis d. none of the above