Meaning: 'Attract' means to draw someone or something towards oneself, in this case, drawing male insects to the orchids for pollination.

Wrong options:

• acknowledge: 'Acknowledge' means to recognize or admit, which does not fit the context of drawing in males for reproduction.
• view: 'View' means to look at or regard, which is not an action related to drawing in or enticing, making it contextually irrelevant here.
• discourage: 'Discourage' means to dissuade or prevent, which is the opposite of what the orchids are trying to achieve in attracting males.

Correct answer: prohibitive

Explanation: The term 'prohibitive' is an adjective that describes conditions that are excessively harsh or limiting, fitting grammatically and contextually to describe the extreme daytime temperatures in desert environments.

Meaning: 'Prohibitive' refers to something that restricts or makes it difficult to do something, in this case, the harsh temperatures that hinder both plants and pollinators.

Wrong options:

• prohibited: 'Prohibited' is a past participle that indicates something is forbidden, which does not accurately describe the nature of the temperatures in this context.
• prohibiting: 'Prohibiting' is a present participle that does not fit grammatically as it does not describe the temperatures themselves but rather an action.
• prohibition: 'Prohibition' is a noun that refers to the act of forbidding something, which does not fit the grammatical structure needed in this sentence.

Correct answer: adapt

Explanation: The verb 'adapt' is correctly used in the present tense to indicate that animal parents modify their strategies, aligning with the context of changing behaviors based on environmental needs.

Meaning: 'Adapt' means to adjust or modify something to suit new conditions, in this case, how animal parents change their nurturing strategies.

Wrong options:

• relax: 'Relax' means to become less tense or to ease, which does not fit the context of changing strategies for nurturing.
• advocate: 'Advocate' means to support or recommend, which does not convey the idea of changing or modifying strategies.
• win: 'Win' means to achieve victory, which is unrelated to the concept of adjusting nurturing strategies.

Correct answer: spectrum

Explanation: The word 'spectrum' is a noun that refers to a range or variety, fitting grammatically and contextually to describe the diverse methods of pollination that plants have developed.

Meaning: 'Spectrum' means a wide range of different but related ideas or things, in this case, the various pollination methods used by plants.

Wrong options:

• survival: 'Survival' is a noun that refers to the state of continuing to live or exist, which does not convey the idea of variety or range needed here.
• revenue: 'Revenue' refers to income, which is unrelated to the context of pollination methods.
• zone: 'Zone' refers to an area or region, which does not capture the idea of a range of methods.

Correct answer: diminished

Explanation: The word 'diminished' is the past participle of the verb 'diminish,' which fits grammatically and contextually to describe a reduction in biodiversity as a consequence of inadequate pollination strategies.

Meaning: 'Diminished' means reduced in size, amount, or importance, indicating a loss of biodiversity.

Wrong options:

• initial: 'Initial' refers to the beginning stage of something, which does not relate to the concept of reduction in biodiversity.
• prime: 'Prime' means of the best quality or importance, which is not relevant to the context of biodiversity loss.
• retired: 'Retired' means having left one's job or ceased to work, which does not fit the context of biodiversity.