What Can Be Inferred from the Graph Below

question 3

Multiple Choice

What can be inferred from the graph below?

• A)The biological response for both toxicants increases as the dose is increased.
• B)For both toxicants, a harmful response occurs only above a certain threshold level, that is different for each toxicant.
• C)Toxicant A has a lower effective dose-50 percent (ED₅₀)than toxicant B.
• D)All of the above can be inferred from the graph.

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Definitions:

Preoperational

A stage in Jean Piaget's theory of cognitive development, where children aged 2 to 7 years old engage in symbolic play and struggle with logic and taking the perspective of others.

Sensorimotor

The stage in Piaget's theory of cognitive development (birth to about 2 years) where infants learn about the world primarily through their senses and actions.

Centration

A cognitive limitation in young children's thinking, marked by focusing on one aspect of a situation while neglecting others, characteristic of the preoperational stage.

Conservation Skills

Cognitive abilities that enable a child to understand that quantity or amount does not change when its form or appearance is altered, a concept developed by Jean Piaget.