Which type of internal membrane is found lining body cavities that are open to the outside?
What will be an ideal response?
Mucous membrane
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If the cell whose nuclear material is shown in the accompanying figure continues toward completion of mitosis, which of the following events would occur next?
A) cell membrane synthesis B) spindle fiber formation C) nuclear envelope breakdown D) formation of telophase nuclei E) synthesis of chromatids
Response
Match the letter of each example from childbirth to the appropriate component of a positive feedback loop. A. pituitary gland secretes oxytocin, which acts on the uterus B. uterine contractions increase C. fetus is pushed against uterine opening D. receptors detect stretch E. brain receives and compares stretch information 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 positive feedback? 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?
____ are dormant structures formed by certain bacteria in response to unfavorable environmental
conditions.
a. Capsids b. Endospores c. Endotoxins d. Exotoxins e. Heterocysts
During prophase II, ____
a. a new spindle forms b. crossing over occurs c. chromosomes are single-stranded d. the cell is diploid e. the nuclear envelope re-forms