Research by Christopher Cullis has shown that
a. the genome size of plants varies little between species.
b. the genome size of individual plants of the same species is constant.
c. a plant’s environment can act as a selective agent to establish advantageous variants, but
these variants cannot be transmitted to the next generation.
d. a plant’s environment can act as a selective agent to establish advantageous variants, and
these variants can be transmitted to the next generation.
e. the genome size of plants is related to plant size.
D
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Which feature is an evolutionary novelty of hexapods?
A. Jointed appendages B. Mandibles C. Chitinous exoskeletons D. Wings E. Antennae
Answer the question using the accompanying figure. Which number identifies the structure that carries supplemental
genetic information?
a. 1 b. 2 c. 3 d. 4 e. 5
plasma membrane
A. a feature of all cells B. found in prokaryotic cells only C. found in eukaryotic cells only D. found in plant cells only E. found in animal cells only
Which of the following is characterized by the formation of a population of lymphocytes that can attack and destroy the foreign material?
a) hypersensitive immunity b) cell-mediated immunity c) acquired immunity d) humoral immunity