The study and reconstruction of phylogenies is
A. systematics.
B. cladistics.
C. taxidermy.
D. evolution.
E. taxonomy.
Answer: A
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Which one of the following terms applies to the phylum Cnidaria?
A. radial symmetry B. pseudocoelomate C. Parazoa D. triploblastic E. protostome
A cell that has three copies of every chromosome is
A) euploid. B) triploid. C) aneuploid. D) tetraploid.
Answer the following statements true (T) or false (F)
1.Mycologists classify fungi into five phyla based on their sexual structures. 2.Ascomycetes are fungi that cause disease and are not beneficial to humans in any way. 3.A dikaryotic stage is common in the life cycle of many plants, protozoans, and fungi. 4.Salt and sugar in high enough concentrations retard mold growth by limiting the ability of these organisms to take up water by osmosis. 5.Some animals are autotrophs.
A type of learning in which there is a decrease in the response to a repeated stimulus is
A. conditional. B. habituation. C. operant conditioning. D. imprinting.