Why Does a Star Grow Larger After It Exhausts Its

question 85

Multiple Choice

Why does a star grow larger after it exhausts its core hydrogen?

• A)The outer layers of the star are no longer gravitationally attracted to the core.
• B)Helium fusion in a shell outside the core generates enough thermal pressure to push the upper layers outward.
• C)Hydrogen fusion in a shell outside the core generates enough thermal pressure to push the upper layers outward.
• D)The internal radiation generated by the hydrogen fusion in the core has heated the outer layers enough that they can expand after the star is no longer fusing hydrogen.
• E)Helium fusion in the core generates enough thermal pressure to push the upper layers outward.

Understand the implications of competition between memories.

Examine the role of suggestion in the development of false memories.

Distinguish between schemas, scripts, and their impact on memory.

Assess the effects of new information on recollection and the concept of source confusion.

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Definitions:

Chemical Synapse

A junction between two nerve cells, where neurotransmitters are used to relay signals.

Presynaptic Terminal

The end part of a nerve fiber that releases neurotransmitters to transmit nerve signals to another neuron across a synapse.

Postsynaptic Membrane

The part of the nerve cell membrane that is on the receiving end of a synapse, responding to neurotransmitters released by the presynaptic neuron.

Synaptic Cleft

The narrow gap between the terminal end of a neuron and the neighboring neuron or muscle cell, across which neurotransmitters are released to transmit signals.