Ringlike patterns on an earthworm and "six-pack abs" in humans are evidence of ____ in an animal's
body plan.
a. cephalization
b. segmentation
c. radial symmetry
d. mesenteries
e. cleavage
B
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Select the correct sequence of animal developmental events
a. fertilization >>> cleavage >>> gastrulation >>> morula b. fertilization >>> cleavage >>> morula >>> gastrulation c. cleavage >>> morula >>> gastrulation >>> fertilization d. morula >>> fertilization >>> gastrulation >>> cleavage e. fertilization >>> morula >>> gastrulation >>> cleavage
Which of the following are NOT polymers:
A. Nucleic acids B. Polysaccharides C. Lipids D. Proteins
Roots that form on stems or leaves are called ____.
A. taproots B. fibrous C. adventitious D. primary E. secondary
Greek philosophers including Aristotle developed a keen appreciation for the study of natural history. Which of the following are contributions made by Aristotle to the study of natural history?
a. his book, Physics and Natural History of Animals b. distinguishing among 500 species of birds, mammals, and fishes c. proposing a taxonomy of nature—a classification system of life. d. All of the above