Heavy Metals, Such as Copper, Are Required for Proper Development

question 41

Multiple Choice

Heavy metals, such as copper, are required for proper development. However, if too much copper is present it can lead to developmental defects. A scientist was interested in studying the developmental defects that could occur at various concentrations of copper. Genetically identical organisms were grown in 6 different concentrations of copper. This experiment evaluates a(n) ________.

• A) epistasis
• B) dominant trait
• C) recessive trait
• D) norm of reaction

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Definitions:

Predator-prey Cycle

The dynamic, cyclical relationship between predators and their prey, where each affects the other's population size.

Plant Parasites

Organisms that live on or within plant tissues and derive nutrients at the host's expense, often causing harm.

Resource Partitioning

A process where different species utilize the same resources in different ways to reduce competition among them.

Competitive Exclusion

A principle stating that two species competing for the same resources cannot coexist at constant population values if other ecological factors remain constant.