Use the Following Information to Answer the Question Below

question 7

Multiple Choice

Use the following information to answer the question below.
An elementary school science teacher decided to liven up the classroom with a saltwater aquarium. Knowing that saltwater aquaria can be quite a hassle, the teacher proceeded stepwise. First, the teacher conditioned the water. Next, the teacher decided to stock the tank with various marine invertebrates, including a polychaete, a siliceous sponge, several bivalves, a shrimp, several sea anemones of different types, a colonial hydra, a few coral species, an ectoproct, a sea star, and several herbivorous gastropod varieties. Lastly, she added some vertebrates-a parrotfish and a clownfish. She arranged for daily feedings of copepods and feeder fish.
The bivalves started to die one by one; only the undamaged shells remained. To keep the remaining bivalves alive, the teacher would most likely need to remove the ________.

• A) sea anemones
• B) sea star
• C) gastropods
• D) ectoprocts
• E) parrotfish

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Definitions:

Operant Conditioning

A learning process in psychology where behaviors are influenced by the consequences that follow them, such as rewards or punishments.

Social Order

The set of rules, norms, and structures that govern societies, enabling individuals to live together in harmony and security.

Psychosocial Development

A theory proposed by Erik Erikson that outlines eight stages through life, from infancy to adulthood, where individuals face and resolve conflicts that impact their social and personal development.

Erikson

Psychologist Erik H. Erikson developed a theory of psychological development that identifies eight stages from infancy to adulthood, each characterized by a central conflict.