III. THE INTERRELATIONS OF PLANTS AND ANIMALS
Problem.—To discover the general interrelations of green plants and animals.
(a) Plants as homes for insects.
(b) Plants as food for insects.
(c) Insects as pollinating agents.
Laboratory Suggestions
A field trip:—Object: to collect common insects and study their general characteristics; to study the food and shelter relation of plant and insects. The pollination of flowers should also be carefully studied so as to give the pupil a general viewpoint as an introduction to the study of biology.
Laboratory exercise.—Examination of simple insect, identification of parts—drawing. Examination and identification of some orders of insects.
Laboratory demonstration.—Life history of monarch and some other butterflies or moths.