Adaptation 2 - Marvel EDU

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Practice Reading: Multiple Choice, Multiple Answers ID: #5604 Adaptation 2

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Read the text and answer the question by selecting all the correct responses. You will need to select more than one response.

Adaptations enable living organisms to cope with environmental stresses and pressures. Adaptation can be structural or behavioral. Structural adaptations are special body parts of an organism that help it to survive in its natural habitat (e.g. skin color, shape, body covering). Behavioral adaptations are the ways a particular organism behaves to survive in its natural habitat Physiological adaptations are systems present in an organism that allow it to perform certain biochemical reactions (e.g. making venom, secreting slime, being able to keep a constant body temperature) Adaptations are traits that have been selected for by natural selection. The underlying genetic basis for the adaptive trait did not arise as a consequence of the environment; the genetic variant pre-existed and was subsequently selected because it provided the bearer of that variant some advantage.

Which of the following are true statements about adaptations?

* Click on the correct answers

They can be structural, behavioral, or physiological adaptations. They mostly occur in physical appearances of special body parts of an organism. They are new genes created to increase an organism's chance of survival. They are genes selected due to the benefits they offer in a particular environment. They are created by the environment to help an organism survive in its habitat.

Result:

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Option 1: "They can be structural, behavioral, or physiological adaptations."

Explanation: The text clearly states that adaptations can be structural, behavioral, or physiological, providing definitions and examples for each type. This aligns directly with the main idea of the text, which emphasizes the different forms adaptations can take.

Option 2: "They mostly occur in physical appearances of special body parts of an organism."

Explanation: While structural adaptations do relate to physical appearances, the statement is misleading as it implies that adaptations are primarily about physical traits. The text discusses behavioral and physiological adaptations as well, making this statement too narrow.

Option 3: "They are new genes created to increase an organism's chance of survival."

Explanation: This option is incorrect because the text specifies that the genetic basis for adaptations pre-existed and was selected for its advantages, rather than being newly created. Thus, this statement contradicts the information provided.

Option 4: "They are genes selected due to the benefits they offer in a particular environment."

Explanation: The text mentions that adaptations are traits selected by natural selection because they provide advantages. This aligns perfectly with the statement, confirming its correctness.

Option 5: "They are created by the environment to help an organism survive in its habitat."

Explanation: This option is incorrect as it suggests that adaptations are created by environmental factors, whereas the text clarifies that the genetic variants pre-existed and were selected for their advantages, not created by the environment.

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