Modern humans are classified as belonging to the species ________

Fill in the blank(s) with correct word


Homo sapiens

Biology & Microbiology

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Neurons known as "pacemaker" cells:

A) are the output cells for oscillator circuits B) have inherent spontaneous rhythms C) control heart heart D) None of the above

Biology & Microbiology

The structure(s) critical to the function of a chemical synapse include

_____ gap junctions. _____ neurotransmitters. _____ vesicles. _____ voltage-gated Ca2+ channels. _____ electrical signals.

Biology & Microbiology

The medulla of the adrenal gland produces eninephrine (i.e. adrenaline).

a. true b. false

Biology & Microbiology

Sexual reproduction _____________________.

A. leads to uniform characteristics within a population B. results in new combinations of genetic traits C. creates genetic clones D. requires less tissue differentiation than asexual reproduction E. produces genetic clones and requires less tissue differentiation than asexual reproduction

Biology & Microbiology