Meaning: 'Estimated' means calculated or approximated based on available data.

Wrong options:

• served up: 'Served up' is a phrasal verb that implies the action of presenting food, which does not fit as it does not describe a percentage.
• appropriate: 'Appropriate' is an adjective that means suitable or proper, which does not relate to the statistical context of the sentence.
• delicacy: 'Delicacy' is a noun that refers to a rare or luxurious food item, which does not fit as it does not describe a percentage of the population.
• approved: 'Approved' is a past participle that indicates something has been officially accepted, which does not fit the context of estimating a population percentage.
• consumed: 'Consumed' is a past participle that refers to the act of eating, which does not fit as it does not describe a percentage.

Correct answer: served up

Explanation: The phrase 'served up' is a phrasal verb that indicates the action of presenting or offering food, which fits contextually as it describes how insects are made available for consumption around the world.

Meaning: 'Served up' means to present food for eating.

Wrong options:

• estimated: 'Estimated' is an adjective that describes an approximation, which does not fit as it does not indicate an action related to food.
• appropriate: 'Appropriate' is an adjective that means suitable, which does not convey the action of presenting food.
• delicacy: 'Delicacy' is a noun that refers to a luxurious food item, which does not fit as it does not indicate an action.
• approved: 'Approved' is a past participle that indicates acceptance, which does not fit the context of serving food.
• consumed: 'Consumed' is a past participle that refers to the act of eating, which does not fit as it does not indicate the action of serving.

Correct answer: delicacy

Explanation: The term 'delicacy' is a noun that refers to a food item that is considered rare or luxurious, which fits contextually as it describes the status of 'kungu cakes' in parts of Africa.

Meaning: 'Delicacy' refers to a special or luxurious food item that is often rare or highly regarded.

Wrong options:

• served up: 'Served up' is a phrasal verb that indicates the action of presenting food, which does not fit as it does not describe the status of the food item.
• appropriate: 'Appropriate' is an adjective that means suitable, which does not convey the idea of a special food item.
• estimated: 'Estimated' is an adjective that describes an approximation, which does not fit as it does not describe a food item.
• approved: 'Approved' is a past participle that indicates acceptance, which does not fit the context of describing a food item.
• consumed: 'Consumed' is a past participle that refers to the act of eating, which does not fit as it does not describe the status of the food.

Correct answer: consumed

Explanation: The word 'consumed' is a past participle that indicates the act of eating or using up food, which fits contextually as it describes how insects are eaten in Mexico.

Meaning: 'Consumed' means to eat or use up something.

Wrong options:

• served up: 'Served up' is a phrasal verb that indicates the action of presenting food, which does not fit as it does not describe the act of eating.
• appropriate: 'Appropriate' is an adjective that means suitable, which does not convey the action of eating insects.
• delicacy: 'Delicacy' is a noun that refers to a luxurious food item, which does not fit as it does not indicate the act of eating.
• approved: 'Approved' is a past participle that indicates acceptance, which does not fit the context of describing the act of eating insects.
• estimated: 'Estimated' is an adjective that describes an approximation, which does not fit as it does not describe the act of eating.