Which of the following species would NOT be considered a bilaterally symmetrical protostome?
a. Octopus
b. Sea urchin
c. Sponge
d. B and C
e. all of the above
Answer: d. B and C
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Which of the following statements best describes the function of the xylem?
A. It transports water from the roots to the stems and leaves. B. It transports food between the leaves and the roots. C. It transports minerals from the roots to the stems and leaves. D. It transports both water and minerals from the roots to the stems and leaves. E. It transports water from roots to leaves and food from leaves to roots.
Secondary metabolites are organic compounds produced outside of primary metabolic processes essential for cell structure and growth. Based on this information, which of the following is an example of a secondary metabolite?
A. glucose. B. lipids. C. proteins. D. RNA. E. steroids.
All of the following are major points of the article Endangered Sea Turtles except:
a. Leatherback population in Pacific may go extinct before 2010. b. TED nets decreased turtle drowning rate. c. Records show declining numbers of turtles returning to nest on Central American beaches. d. All countries now use TEDs to fish for shrimp.
Which vitamin is water soluble and cannot be synthesized by the body?
A) A B) C C) E D) K