In a Cladogram, Groups That Terminate in Adjacent Branches Are

question 8

Multiple Choice

In a cladogram, groups that terminate in adjacent branches are called:

• A)nodes.
• B)derived groups.
• C)synapomorphies.
• D)sister groups.
• E)outgroups.

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Definitions:

Endorphins

Neurochemicals produced within the body that act as natural painkillers and mood elevators, often credited with producing feelings of pleasure and euphoria.

Neurotransmitters

Substances that carry signals from one neuron to another across a synapse in the nervous system.

Opiate Drugs

A category of drugs derived from opium plants, often used for pain relief but associated with high addiction potential.

Receptor Sites

Specific regions on the surface of a cell or within a cell where messenger molecules, such as hormones or neurotransmitters, bind to initiate a cellular response.