Which of the following form the gritty texture you feel in the flesh of pears?

A. tracheids
B. collenchyma cells
C. fibers
D. sclereids


Answer: D

Biology & Microbiology

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Viruses are unable to multiply outside of a host cell.

Answer the following statement true (T) or false (F)

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The production of vinegar relies on the microbial oxidation of ethanol to acetic acid

Indicate whether the statement is true or false

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Cystic fibrosis is a genetic disorder in homozygous recessive (ff) humans that typically causes death in the early thirties. Over time, we would expect the f allele frequency to _____ for this trait

A) remain the same B) increase C) decrease D) fluctuate

Biology & Microbiology

A disease that is present in unusually high numbers throughout the world is called a(n)

A) endemic. B) epidemic. C) sporadic. D) pandemic.

Biology & Microbiology