If a Fish Loses One of Its Sensory Structures, It

question 151

Multiple Choice

If a fish loses one of its sensory structures, it will remain unable to school. Which structure, if lost, would render a fish unable to school?

• A)the lateral line
• B)the statocyst
• C)the eyes
• D)the vestibular apparatus

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Definitions:

Nucleosomes

Nucleosomes are the basic structural unit of DNA packaging in eukaryotic cells, composed of a segment of DNA wound around a core of histone proteins.

Histones

Small, positively charged (basic) proteins in the cell nucleus that bind to the negatively charged DNA. See nucleosomes.

Somatic Cell

In animals, a cell of the body not involved in formation of gametes. Compare with germ line cell.

Interphase

The stage of the cell cycle between successive mitotic divisions; its subdivisions are the G-22 / Glossary phases.