Collective Behavior in Animals

The word "those" in paragraph 1 refers to

• types

• animals

• advantages

• groups

The word "they" in paragraph 2 refers to

• small groups

• flowers

• nutrients

• bee colonies

The word "others" in paragraph 2 refers to

• studies

• insects

• bees

• ants

The word "their" in paragraph 3 refers to

• collective groups

• species

• scientists

• individuals

The phrase "this lack" in paragraph 4 refers to

• imbalance in nutrients

• natural mechanisms

• foraging strategy

• attempt

The word "what" in paragraph 5 refers to

• foragers

• observation

• phenomenon

• behavior

The word "ones" in paragraph 6 refers to

• resources

• colonies

• caterpillars

• groups

The word "they" in paragraph 6 refers to

• active caterpillars

• resources

• groups

• sedentary caterpillars