Fossils Found Closer to the Surface Are Usually Older Than

question 46

True/False

Fossils found closer to the surface are usually older than those buried deeper in the Earth's crust.

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Definitions:

Synaptic Cleft

The small gap between the presynaptic and postsynaptic neurons, across which neurotransmitters are released to communicate signals.

Presynaptic Membrane

A region of the neuron that releases neurotransmitters in response to an action potential.

Postsynaptic Membrane

The part of the neuron or muscle cell that receives signals from another neuron at a synapse.

Storage Granule

Membranous compartment that holds several vesicles containing a neurotransmitter.