What is the total magnification of a specimen viewed with a 10x ocular lens and a 45x objective lens?
A) 4.5x
B) 10x
C) 45x
D) 100x
E) 450x
E
Biology & Microbiology
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A neuropeptide that functions as a natural analgesic is _____
A) acetylcholine B) epinephrine C) endorphin D) nitric oxide E) gamma-aminobutyric acid (GABA)
Biology & Microbiology
Which normal developmental process, when overactive, is thought to play a role in the development of schizophrenia?
A) Synaptic pruning B) Serotonin reuptake C) Production of neurotransmitters D) Cell adhesion
Biology & Microbiology
Which risk factor for cardiovascular disease cannot be controlled?
a. diet b. life-style choice c. genetic history d. dietary choice e. levels of blood lipids
Biology & Microbiology
Populations of different species that live together in the same place are called ________.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology