What cellular structure protects bacteria from drying out?

A. Cytoplasmic membrane
B. Fimbriae
C. Peptidoglycan
D. Glycocalyx


D. Glycocalyx

Biology & Microbiology

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Which of the following medicines are derived from defensive compounds originally made by plants? Select all correct choices

A. aspirin (a pain-reliever) B. quinine (an anti-malarial drug) C. artemisinin (an anti-malarial drug) D. vincristine (a chemotherapy drug) E. taxol (a chemotherapy drug)

Biology & Microbiology

True seals' characteristics include

a. lack of external ear. b. swimming with forelimbs. c. swimming with hind limbs. d. both a and c e. both a and b.

Biology & Microbiology

At one time, the pituitary was known as the ‘master gland’. Explain why this name is both fitting and misplaced. What will be an ideal response?

Biology & Microbiology

Which of the following is the correct order of steps for the CRISPR-Cas mechanism?

A) cleavage, target interference, biogenesis B) target interference, transcription, biogenesis C) spacer acquisition, biogenesis, target interference D) transcription, cleavage, spacer acquisition

Biology & Microbiology