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)

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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

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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

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