Blood vessels and tiny air sacs within lungs are lined by ________ epithelium
a. simple columnar
b. all of the choices
c. simple cuboidal
d. simple squamous
d
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Which of the following is not an accurate description of events leading to the lytic pathway following viral infection in a bacterium?
A. Upon infection, the linear bacteriophage DNA forms a circle and transcription is initiated from promoters PL and PR. B. The transcripts from PR encode the proteins cro and cII. C. The cro protein represses transcription from PM so that the cl protein is not transcribed. D. Strong protease activity rapidly degrades cII, and cro continues to repress cI expression, leading to the lytic path. E. Reduced protease activity due to poor conditions allows cII to accumulate, which then stimulates transcription from PE and thus expression of cI.
Males and females often differ in their reproductive strategies due to the fact that males can increase the number of
offspring they produce by ____ while females reproduce most successfully by ____.
a. mating with a high-quality female; mating with a high-quality male b. driving off other males; defending a productive territory c. defending a productive territory; enlisting multiple males to aid in raising her offspring d. mating with multiple females; mating with a high-quality male e. mating with multiple females; mating with multiple males
Reinforcement enhances prezygotic isolation that had begun to develop while the populations were
sympatric.
Indicate whether the statement is true or false.In cases of __________ growth, a population's growth is proportional to its size. Fill in the blank(s) with the appropriate word(s)