A substance that gives up an electron to a free radical is a(n) ____
a. oxidizer
b. antioxidant
c. antibiotic
d. antibody
e. antiviral
ANSWER: b
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Spindle-shaped viruses have been shown to infect only
A) Eukarya. B) Bacteria. C) Archaea. D) plants.
Which of the following statements is NOT true of any Foraminifera?
A. They contain symbiotic algae. B. They formed petroleum deposits. C. They are useful in studying global warming. D. They have filose pseudopodia. E. They have flagella.
What is cartilage composed of?
A. Chondroitin and collagen fibers B. Osteocytes and calcium phosphate C. Chondroitin and calcium phosphate D. Collagen fibers and osteocytes E. Osteocytes and glycoproteins
A set of regulator genes is known to be very similar in both humans and flies. This fact is used to indicate what about the two species?
What will be an ideal response?