The Signaling Substance Used to Direct the Aggregation of Cells

question 43

Multiple Choice

The signaling substance used to direct the aggregation of cells during the Dictyostelium growth cycle indicates:

• A)a lack of water within the environment
• B)high levels of nutrients are present within the environment
• C)low levels of nutrients have led to an energy shortage
• D)elevated moisture in the environment threatens survival
• E)reduced phosphorous levels in the environment

Understand the concept of correlation in statistical analysis.

Identify appropriate methods for calculating correlation coefficients.

Interpret the significance of correlation coefficients in research contexts.

Differentiate between positive and negative correlations.

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Definitions:

Behaving

Acting in a manner according to certain standards, rules, or expectations in social contexts.

Heteronomous Morality

The first stage of moral development in Piaget’s theory, occurring from 4 to 7 years of age. Justice and rules are conceived of as unchangeable properties of the world, beyond the control of people.

Immanent Justice

The belief, often held by children, that moral behavior is immediately rewarded and immoral behavior is immediately punished.

Autonomous Morality

The second stage of moral development in Piaget’s theory, displayed by older children (about 10 years of age and older). The child becomes aware that rules and laws are created by people and that, in judging an action, one should consider the actor’s intentions as well as the consequences.