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A bright flash of light would cause which muscle of the iris to contract?
a) pupillary constrictor
b) pupillary dilator

Answers

Answer 1

Answer:

a) pupillary constrictor

Explanation:

pupillary constrictor - contraction of the sphincter muscle of the iris in response to a bright light causing the pupil to become smaller light...(contract).


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Answer:

Physical and Chemical Barriers (Innate Immunity) Physical and chemical barriers form the first line of defense when the body is invaded. Physical Barriers. The skin has thick layer of dead cells in the epidermis which provides a physical barrier. Periodic shedding of the epidermis removes microbes.

Explanation

Physical and chemical barriers form the first line of defense when the body is invaded. The skin has thick layer of dead cells in the epidermis which provides a physical barrier. Periodic shedding of the epidermis removes microbes. The mucous membranes produce mucus that trap microbes.

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Answer:

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Explanation:

WHICH CELL BELONGS TO THE NERVOUS SYSTEM, DESCRIBE THE PARTS OF THAT CELL.

Answers

theres 2 Basic cells that are a part of the nervous system glial cells and neurons. neurons, process information, and glia, which provide the neurons with mechanical and metabolic support.

Answer: The basic unit of the nervous system is a nerve cell, or neuron. The human brain contains about 100 billion neurons. A neuron has a cell body, which includes the cell nucleus, and special extensions called axons (pronounced AK-sonz) and dendrites (pronounced DEN-drahytz).

Explanation:

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