Adaptations to terrestrial environments evolved independently in arthropods, mollusks, nematodes, and annelids. What logical conclusion would you make from this statement?
A) All these groups have a coelom.
B) The common ancestor of all these groups was probably aquatic.
C) All these groups have the same type of body plan.
D) All these groups lost their coelom after moving to land.
Answer: B
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Double fertilization is important to the reproductive process because it produces:
A. both the zygote and the endosperm B. a reaction that keeps the plant from dying C. a double portion of endosperm D. nutrition for the seed E. None of these is true
Among the following, which number of carbons would be the most likely number of carbons for a
fatty acid from a living organism?
a. 8 b. 13 c. 16 d. 19 e. 26
Which of the following genetic diseases involve defects in DNA repair, which affects cell division?
A. Gaucher disease and Werner syndrome B. Kearns-Sayre syndrome and progeria C. Progeria and Werner syndrome D. Gaucher disease and cystic fibrosis E. Progeria and Werner syndrome
About how many species of plants and animals worldwide have been described and given Latin names?
A) 150,000 B) 1.5 million C) 10 million D) 100 million