If you were told to bring an animal with an open circulatory system to a party, what might you take along?
A. crocodile
B. planarian
C. insect
D. earthworm
E. whale
Answer: C. insect
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The “back” of the human body is its __________
surface. a. anterior b. posterior c. inferior d. superior e. ventral
Clubfoot and cleft palate are traits
A. that are congenital birth defects. B. that have discontinuous distribution. C. that are multifactorial. D. whose distribution can best be explained by the threshold model. E. that have all of these characteristics.
Phylogenetic trees should be viewed as:
a) intellectual exercises, not to be interpreted literally. b) true genealogical relationships of species. c) hypotheses regarding evolutionary relationships of groups of organisms. d) the result of vertical, but never horizontal, gene transfer. e) representations of allopatric speciation events.
Which of the following statements regarding mitosis and meiosis is false?
A) Mitosis provides for growth and tissue repair. B) Meiosis provides for asexual reproduction. C) In mitosis, the chromosomes replicate only once in the preceding interphase. D) All the events unique to meiosis occur during meiosis I.