The heavier components of oil evaporate fairly quickly

Indicate whether the statement is true or false


F

Biology & Microbiology

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The pigment in hemoglobin contains the

mineral ___ to which oxygen binds.

a. magnesium b. iron c. calcium d. copper e. zinc

Biology & Microbiology

Which of the following is made from DNA?

a. tRNA only b. mRNA only

c. rRNA only d. mRNA and tRNA only e. mRNA, tRNA, and rRNA

Biology & Microbiology

Mitochondria arose by endosymbiosis of ______.

A. an anaerobic bacterium B. a photosynthetic bacterium C. an aerobic bacterium D. an aerobic archaeon E. a photosynthetic archaeon

Biology & Microbiology

The endoplasmic reticulum, Golgi body, and other membranous organelles of cells might have formed by numerous infoldings of the cell's outer membranes.

a. true b. false

Biology & Microbiology