Research Indicates That ________ Respond(s)to ________ Signals That Inform a Cell

question 50

Multiple Choice

Research indicates that ________ respond(s) to ________ signals that inform a cell about its position relative to other cells in the embryo.

• A)nervous tissue; hormonal
• B)master control genes; chemical
• C)organs; radio
• D)organelles; chemical

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Definitions:

Receptor Neurons

Specialized nerve cells that respond to chemical and physical stimuli in the environment, sending signals to the brain.

Scents

Volatile substances that can be perceived by the sense of smell, often used by organisms to communicate, forage, or detect predators or mates.

Supertasters

Individuals with an enhanced genetic sensitivity to certain tastes, particularly bitter flavors.

Olfactory Epithelium

The specialized tissue inside the nasal cavity involved in smell; it houses olfactory receptors that detect odors.