Two Populations of Plants Found in the Same Meadow Look

question 80

Multiple Choice

Two populations of plants found in the same meadow look identical but are fertilized by different pollinators-one by a night-flying hummingbird moth, the other by honeybees that fly by day. This is an example of

• A) ecological isolation.
• B) mechanical incompatibility.
• C) geographic isolation.
• D) behavioral isolation.
• E) temporal isolation.

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Definitions:

Vygotsky

Lev Vygotsky, a Russian psychologist known for his theory on social development and the concept of the Zone of Proximal Development.

Formal Operations

The stage in Piaget’s theory of cognitive development where adolescents and adults develop the ability to think about abstract concepts and logically test hypotheses.

Concrete Operations

A stage in cognitive development, according to Piaget, where children gain the ability to think logically about concrete events.

Preoperational Thought

A stage in cognitive development, according to Jean Piaget, where children aged 2-7 years are capable of using symbols and language but do not yet understand concrete logic.