Term

1. In which of the following ways do social insects benefit most from having several types or castes within the species? (A) Each colony is able to include a large number of individuals. (B) The secretions or odors produced by the protective caste are an effective defense. (C) The division of the species into castes ensures the survival of the fittest. (D) Large numbers of the worker caste can migrate to start new colonies. (E) The specialized structure of each caste permits division of labor and greater efficiency.

Definition

E. The specialized structure of each caste permits division of labor and greater efficiency.

Term

2. The greatest diversity of structure and of methods of locomotion is exhibited in the individuals of (A) a class (B) a family (C) an order (D) a species (E) a phylum

Definition

E. a phylum

Term

3. Of the following, which is an example of a mutualistic relationship? (A) The protozoan Trichonympha digesting wood in the gut of a termite (B) The sporozoan Plasmodium reproducing in human blood cells and liberating toxins into the human body (C) Two species of Paramecium deriving food from a common laboratory culture (D) Rabbits being eaten by foxes (E) Humans inadvertently providing food for cockroaches

Definition

A. The protozoan Trichonympha digesting wood in the gut of a termite