Reciprocal inhibition is responsible for (select all correct choices):
A. the knee-jerk reflex.
B. the Mauthner cell circuit of fish.
C. voluntary motor behavior controlled by the
brain.
A,B
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In a 32-cell stage tunicate embryo, vegetal marginal cells that lack functional genes for both macho-1 and the FGF receptor would develop as what cell type?
A. mesenchyme B. muscle C. notochord D. nerve cord Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about FGF induction? Consider Possibilities · Consider the different answer options. Which can you rule out? Choose Answer · Given what you now know, what information and/or problem solving approach 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?
The Acanthamoeba organism is motile and has spinelike pseudopods, a single round nucleus in the cyst form, and a large karyosome in the nucleus of the troph. An estimated 70% of clinical cases of Acanthamoeba keratitis are misdiagnosed as __________ keratitis
a. bacterial b. fungal c. prion d. viral
All of the following are granulocytes except ________.
A. lymphocytes B. neutrophils C. basophils D. eosinophils E. All of the choices are granulocytes.
As part of your research project, you travel to an island to learn more about the habitats and relationships of spiders, centipedes, and insects. You and your assistant plot out five different areas of the island and count the numbers of spiders, centipedes, and insects living in each plot. Your results show the following: Plot Insects Spiders Centipedes1300254242617103147152147397805791393Based in the information provided, the best explanation for the low numbers of spiders and flies in plot 5 is:
A. Centipedes prefer spiders to flies. B. Centipedes are actively consuming flies and spiders. C. There were not enough spiders to catch and consume all the flies. D. There were not enough flies to support a large centipede population.