The System That Relays Messages in the Form of Electrochemical

question 62

Multiple Choice

The system that relays messages in the form of electrochemical impulses throughout the body is called __________.

• A)the arousal system
• B)the nervous system
• C)the limbic system
• D)the endocrine system

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Definitions:

Palisade Mesophyll

The layer of closely packed cells in a plant leaf where most photosynthesis occurs.

Upper Epidermis

The outermost layer of cells in the upper part of a plant leaf or stem, serving as a protective barrier against the environment.

Transpiration

Transpiration is the process by which moisture is carried through plants from roots to small pores on the underside of leaves, where it changes to vapor and is released to the atmosphere.

Bundle Sheath

A layer of cells in plant leaves and stems that forms a sheath surrounding the vascular bundles.