All vertebrate embryos have _____ at some point during embryonic development, indicating a common evolutionary
ancestor.
a. analogous structures
b. four limb buds, a tail, and somites
c. two limb buds and a tail
d. a backbone and four limb buds
e. back vertebrae, two limb buds, a tail and somites
ANSWER: b
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The ___ Echinoderm lineage is made up of sea urchins and sand dollars, whose ossicles are fused into solid tests that
restrict flexibility but provide excellent protection.
a. Echinoidea b. Ophiuroidea c. Crinoidea d. Holothuroidea e. Asteroidea
Which of the following diseases results from impaired glycosphingolipid degradation?
A) heart disease B) glycosphingolipid anemia C) metabolic syndrome D) erythrocyte spherocytosis E) Tay-Sachs disease
The notochord forms from which type of tissue?
a. ectoderm b. endoderm c. mesoderm d. chorion e. amnion
Which of the following is mismatched?
A) Burkholderia — melioidosis B) Coxiella — Q fever C) Mycoplasma — walking pneumonia D) Chlamydophila — psittacosis E) Mycobacterium — whooping cough