Which of the Following Statements Is True About a Phylogeny,as

question 19

Multiple Choice

Which of the following statements is true about a phylogeny,as represented by a phylogenetic tree?

• A)Descendant groups (branches)from the same node do not necessarily share any derived characters.
• B)A monophyletic group can be properly based on convergent features in addition to synapomorphies.
• C)The ancestral group often has all the synapomorphies of the descendant species.
• D)All of the above answers is correct.
• E)None of the above answers is correct.

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Definitions:

Neurotransmitter

Chemical substances that transmit nerve impulses across a synapse from one neuron to another.

Synaptic Vesicles

Membrane-bound sacs within the neuron that store neurotransmitters, which are chemicals involved in transmitting messages across the synaptic gap.

Resting Potential

The electrical charge of a neuron when it is not active or transmitting an impulse, representing the difference in electric potential across the neuron's membrane.

All-Or-None

Referring to the fact that a neuron either fires completely or does not fire at all.