Signals Reach Target Cells in Multicellular Organisms Via _______ and _______

question 35

Multiple Choice

Signals reach target cells in multicellular organisms via _______ and _______.

• A) circulation; diffusion
• B) conduction; diffusion
• C) circulation; perspiration
• D) chaperon trafficking; transmembrane transport
• E) cytoskeletal trafficking; perfusion

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Definitions:

Foramen

A natural opening or passage, especially in a bone, through which blood vessels, nerves, or ligaments may pass.

Fissure

A small tear in the lining of an organ, such as the skin or the lining of the anus.

Sinus

Cavities or air spaces within the bones of the skull and face that are connected to the nasal cavities, playing roles in respiration and the production of mucus.

Tubercle

A small rounded projection or nodule, especially one that is part of the structure of a bone.