The phylogenetic species concept (PSC) declares that a group is a species if it
A. is reproductively isolated from other species.
B. has evolved one or more of its own derived characters.
C. looks different than other species.
D. is allopatric.
E. has no synapomorphies.
B. has evolved one or more of its own derived characters.
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Which of the following statements most accurately describes the anatomy of a multicellular fungus?
A. Numerous hyphae make up a mycelium. B. Numerous mycelia make up a hypha. C. Numerous mycelia make up a fruiting body. D. Numerous fruiting bodies make up a mycelium. E. Numerous septa make up a hypha.
Which one of the following is mismatched?
a. ground tissue?photosynthesis b. vascular tissue?storage c. dermal tissue?covering of plant body d. ground tissue?storage e. vascular tissue?transport
All of the following are signs of infectious diseases, except
A. fever. B. antibodies in serum. C. swollen lymph nodes. D. leucopenia. E. nausea.
Which of the following is part of the body's second line of defense?
A. Vomiting B. Saliva C. Phagocytosis D. Cytotoxic T-cells