Meaning: 'Originated' means to have begun or started from a particular source or cause.

Wrong options:

• emerged: Emerged suggests coming into view or existence, which doesn't convey the idea of a source or beginning as effectively as 'originated'.
• offered: Offered implies presenting something for acceptance, which is not relevant in this context of evolutionary adaptations.
• amounted: Amounted indicates a total or sum, which does not fit the context of discussing the source of adaptations.

Correct answer: immune

Explanation: The word 'immune' is appropriate here as it suggests that nothing is exempt from being explained in the context provided. It fits grammatically and contextually, indicating a lack of immunity to explanations.

Meaning: 'Immune' means being resistant or exempt from something, in this case, being explained.

Wrong options:

• effect: Effect is a noun that refers to a result, which does not fit grammatically or contextually in this sentence.
• affect: Affect is a verb meaning to influence, which does not align with the intended meaning of being exempt from explanations.
• immense: Immense means very large or great, which does not relate to the context of being explained.

Correct answer: roots

Explanation: The word 'roots' fits well as it refers to the origins or underlying causes of something, which is appropriate in the context of natural selection. It is a plural noun that matches the context of the sentence.

Meaning: 'Roots' refers to the fundamental source or origin of something, particularly in a metaphorical sense.

Wrong options:

• juice: Juice is a liquid extracted from fruits or vegetables and does not relate to the context of origins or causes.
• sprouts: Sprouts refer to young shoots of plants, which does not fit the context of discussing origins in natural selection.
• boots: Boots are a type of footwear and are irrelevant in the context of discussing the origins of behaviors.

Correct answer: differ

Explanation: The word 'differ' is the correct choice as it indicates a distinction between men and women in their abilities, fitting grammatically and contextually in the sentence.

Meaning: 'Differ' means to be unlike or distinct in nature, which is relevant to the discussion of inborn abilities.

Wrong options:

• difference: Difference is a noun that refers to the state of being different, which does not fit grammatically as a verb in this context.
• discuss: Discuss is a verb meaning to talk about something, which does not align with the intended meaning of showing distinction.
• disperse: Disperse means to scatter or spread, which is not relevant to the context of comparing abilities.

Correct answer: little

Explanation: The word 'little' fits grammatically and contextually as it indicates a small amount of influence, which aligns with the implications discussed in the sentence.

Meaning: 'Little' means a small quantity or degree, suggesting minimal influence in this context.

Wrong options:

• least: Least is a superlative form indicating the smallest amount, which does not fit the context of discussing influence as it implies a comparison.
• less: Less indicates a smaller amount but does not fit grammatically in this context as it requires a comparative structure.
• ample: Ample means more than enough, which contradicts the intended meaning of minimal influence.