Which of the following organisms do not demonstrate a definitive alteration of generations in their life cycles?

A. mosses
B. angiosperms
C. ferns
D. gymnosperms
E. green algae


E

Biology & Microbiology

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A virus consisting of a single strand of RNA, which is transcribed into complementary DNA, is a _____

A) reverse transcriptase B) protease C) retrovirus D) RNA replicase virus E) nonenveloped virus

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Single-stranded complementary tails that are produced by restriction digestion are called ______ ends.  

A.  sticky B.  orphaned C.  vectors D.  5'

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Which of the following is a major growth-limiting micronutrient that influences microbial growth?

A) iron B) transferrin C) lactoferrin D) sugar

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Apply Darwin's theory of evolution by natural selection to explain how capsaicins have enhanced the survival of peppers

What will be an ideal response?

Biology & Microbiology