A Fellow Student Brought in a Leaf to Be Examined

question 39

Multiple Choice

A fellow student brought in a leaf to be examined. The leaf was dark green, thin, had stoma on the lower surface only, and had a total surface area of 10 square metres. Where is the most likely environment where this leaf was growing?

• A)a dry, sandy region
• B)a large, still pond
• C)a tropical rain forest
• D)an oasis within a grassland
• E)the floor of a deciduous forest

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Definitions:

Myelin Sheath

A fatty layer that surrounds the axons of some neurons, providing insulation and improving the speed of electrical impulses.

Axons

Long, threadlike parts of nerve cells along which impulses are conducted from the cell body to other cells.

Fatty Material

Substances composed of lipids, such as fats and oils, that are important for energy storage and cell structure in living organisms.

Peripheral Nerves

Nerves located outside the brain and spinal cord, responsible for transmitting information between the central nervous system and the rest of the body.