“Tardigrada” means
a. tough exoskeleton.
b. many proglottids.
c. slow walker.
d. short digestive system.
e. coelom.
Answer: c
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Conjugation in most ciliates involves a series of steps that leads to increased genetic diversity. Which one of the following choices is not one of those steps?
A. mitosis of a haploid nucleus B. mitosis of a diploid nucleus C. meiosis of a haploid nucleus D. meiosis of a diploid nucleus E. sexual reproduction 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 mitosis and meiosis? How does it relate to the question? 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?
Hormone A binds to intracellular receptors in its target tissue. As a result of Hormone A, the target
tissue is now sensitive or responsive to Hormone B. The action of Hormone A was to
a. decrease mRNA for Hormone A receptors. b. increase receptor sites for Hormone B. c. increase receptor sits for Hormone A. d. increased cyclic AMP levels which activated receptors for hormone B. e. decrease receptor sites for Hormone B.
George is a normal XY boy. Who among the
following would essentially have the same Y chromosome as George?
a. his father’s brother b. his mother’s father c. his mother’s brother d. his father’s father e. more than one of these is possible but only those who are related to his father
Describe an additional experimental approach used to study the cytoskeleton in which the activity of cytoskeletal elements is affected in ways similar to those resulting from drug treatment
Fill in the blank with correct word.