The Main Factor Affecting Depth of Focus Is the

question 152

Multiple Choice

The main factor affecting depth of focus is the

• A)convergence.
• B)accommodation.
• C)shape of the lens.
• D)size of the lens.
• E)size of the pupil.

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Definitions:

Arousal

A state of heightened physiological and psychological activity, including increased heart rate, alertness, and readiness to respond.

Amniocentesis

The process of identifying genetic defects by examining a small sample of fetal cells drawn by a needle inserted into the amniotic fluid surrounding the unborn fetus.

Chorionic Villus Sampling

Chorionic villus sampling is a prenatal test that involves taking a sample of cells from the placenta to test for chromosomal abnormalities and certain genetic problems.

Karyotype

A complete picture of an individual's chromosomes, arranged in pairs and ordered by size, used to identify chromosomal abnormalities.