Which molecule acts as a retrograde messenger at many synapses?
a. GABA
b. glycine
c. serotonin
d. substance P
e. nitric oxide
e
Biology & Microbiology
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ATP-binding cassette transport systems have high substrate affinity and thus help microorganisms survive in low nutrient environments
Indicate whether the statement is true or false.
Biology & Microbiology
Considering two species of birds, which of the
following is a derived character?
a. four limbs b. a bony skeleton c. egg production d. feathers e. two eyes
Biology & Microbiology
Which of the following problems is not associated with pregnancy?
A. incontinence B. gastrointestinal reflux C. lordosis D. impotence E. lower back pain
Biology & Microbiology
Thermodynamics
What will be an ideal response?
Biology & Microbiology