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When the Nervous System Signals a Muscle to Contract ____________

question 14

Multiple Choice

When the nervous system signals a muscle to contract ____________ ion channels open.


Definitions:

Alternation of Generations

A type of life cycle characteristic of plants and a few algae and fungi in which they spend part of their life in a multicellular n gametophyte stage and part in a multicellular 2n sporophyte stage.

Gametophyte

The reproductive stage in the life cycle of plants and algae where gametes, the cells responsible for reproduction, are created.

Sporophyte

The diploid multicellular stage in the life cycle of plants and algae that produces spores through meiotic division.

Diploid

Refers to cells that contain two complete sets of chromosomes, one from each parent.

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