Biologists have found evidence that eukaryotic cells evolved from prokaryotic organisms by a process of intracellular ________.

Fill in the blank(s) with the appropriate word(s).


symbiosis

Biology & Microbiology

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A toxin interferes with the opening of Na+ channels in the postsynaptic membrane so they open more slowly when

bound to a neurotransmitter. What effect would there be on action potential formation in the postsynaptic membrane?

What will be an ideal response?

Biology & Microbiology

What types of cells perform cell division?

a. prokaryotes only b. eukaryotes only c. both prokaryotes and eukaryotes d. neither prokaryotes, nor eukaryotes

Biology & Microbiology

If cell and tissue differentiation is controlled genetically, how can environmental factors play a role in determining the final phenotype?

What will be an ideal response?

Biology & Microbiology

Prozac is used as an antidepressant and acts by inhibiting the reuptake of which neurotransmitter in neuronal synapses?

A) dopamine B) serotonin C) acetylcholine D) glutamate

Biology & Microbiology