Jaws first occurred in which extant group of fishes?
A) lampreys
B) chondrichthyans
C) ray-finned fishes
D) placoderms
B
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Where are neurotransmitter receptors located?
A) the nuclear membrane B) the nodes of Ranvier C) the postsynaptic membrane D) synaptic vesicle membranes E) the myelin sheath
If at the last minute the pitcher decides to throw a curveball, which tissue responds first?
A. epithelial tissue B. ectoderm C. nerve tissue D. muscle tissue Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about the tissues of the vertebrate body? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Which of the following is not necessarily the result of a female orgasm?
a. increased heart rate b. rhythmic contractions of skeletal muscles of the pelvis c. pregnancy d. relaxation e. generalized skeletal muscle contractions
Fungi are decomposers, converting carbon from CO2 into organic macromolecules.
Answer the following statement true (T) or false (F)