Oxygen released by ____ accumulated in early Earth's atmosphere and produced the ozone layer

a. early eukaryotes
b. cyanobacteria
c. archaeans
d. protocells
e. aerobic bacteria

b

Biology & Microbiology

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Mendel's monohybrid experiment results led to his law of __________. Fill in the blank(s) with the appropriate word(s)

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What type of immunity is associated with breast feeding?

A) innate immunity B) active immunity C) passive immunity D) cell-mediated immunity

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_______ causes rhythmic contractions of cells in the mammary glands.

Fill in the blank(s) with the appropriate word(s).

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In ________ mimicry, unprotected species resemble others that are distasteful.

A. competitive B. aposematic C. Müllerian D. Batesian

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Biology & Microbiology