Parker, Biology. The Macmillan Company.

Sedgwick and Wilson, Biology. Henry Holt and Company.

XIII. SINGLE-CELLED ANIMALS CONSIDERED AS ORGANISMS

Problems.—To determine:

(a) How a one-celled animal is influenced by its environment.

(b) How a single cell performs its functions.

(c) The structure of a single-celled animal.

Laboratory Suggestions

Laboratory study.—Study of paramœcium under compound microscope in its relation to food, oxygen, etc. Determination of method of movement, turning, avoiding obstructions, sensitiveness to stimuli. Drawings to illustrate above points.