Which structure constitutes part of the axial skeleton?
A) skull
B) pelvic girdle
C) pectoral girdle
D) radius
Answer: A
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A natural predator of the crown-of-thorns sea star is a mollusc called the Giant Triton, Charonia tritonis. If the triton uses a radula to saw into the sea star, then to which clade should the triton belong?
A) chitons B) bivalves C) gastropods D) cephalopods
Review the basic events in the life cycle of Chlamydia by completing each sentence.
The mature _______________ bodies are reorganized into elementary bodies, which are released from the host cell.A) Budding B) Elementary C) Binary fission D) Reticulate E) Phagolysosome F) Meiosis G) Secondary
Give examples of at least two species that are either extinct or facing extinction due to each of the
following: 1) destruction of habitat, 2) biotic pollution, 3) unregulated hunting and poaching, 4) deliberate pest or predator control, and 5) commercial harvesting. What will be an ideal response?
It takes the Earth ________ to orbit around the sun.
A. 1 month B. 1 day C. 1 year D. 12 hours