Why would streptomycete bacteria be of particular interest to a pharmaceutical company? (Select all correct choices.)
A. Streptomycete bacteria produce antibiotic
or anti-fungal-like compounds.
B. All streptomycete bacteria are antibioticresistant.
C. Streptomycete bacteria have cell walls
made of lignin and not peptidoglycan.
D. Streptomycete bacteria change color when
exposed to antibiotics.
A
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Which of the following plays an important role in screening out harmful ultraviolet rays?
A. atmospheric oxygen B. water C. methane D. ozone
Deamination of amino acids will result initially in the formation of
What will be an ideal response?
Turbellarian flatworms have a distinct head. When compared to the head of an insect, what is the flatworm head missing?
A. A mouth B. light-sensitive structures C. Sensory organs D. Anterior collection of nerve cells
Bats use high ultrasonic sounds to perceive their environment via a process known as ____
a. sound reflection navigation b. extrasensory perception c. echolocation d. ultralocation e. auditory navigation