Background: Some species of ants farm aphids, protecting them on the plants where they are feeding, and consuming the honeydew the aphids release from the terminations of their alimentary canals. This is a mutualistic relationship, with these dairying ants milking the aphids by stroking them with their antennae. Although mutualistic, the feeding behaviour of aphids is altered by ant attendance. Aphids attended by ants tend to increase the production of honeydew in smaller drops with a greater concentration of amino acids.Some farming ant species gather and store the aphid eggs in their nests over the winter. In the spring, the ants carry the newly hatched aphids back to the plants. Some species of dairying ants (such as the European yellow meadow ant, Lasius flavus) manage large herds of aphids that feed on roots of plants in the ant colony. Queens leaving to start a new colony take an aphid egg to found a new herd of underground aphids in the new colony. These farming ants protect the aphids by fighting off aphid predators.

Situation: Hannah and Joe are two colleagues. They both study horticulture. They've been studying ants lately for their entomology class. Hannah studied ants that farm aphids, while Joe studied ants that farm fungus.

Question: Which student learned more about ants fighting off aphid predators?
Answer: Hannah

Situation: Hannah and Joe are two colleagues. They both study horticulture. They've been studying ants lately for their entomology class. Hannah studied ants that farm aphids, while Joe studied ants that farm fungus.

Question: Which student learned less about ants fighting off aphid predators?
Answer: Joe

Situation: Hannah and Joe are two colleagues. They both study horticulture. They've been studying ants lately for their entomology class. Hannah studied ants that farm aphids, while Joe studied ants that farm fungus.

Question: Which student learned less about ants that protect the aphids?
Answer: Joe

Situation: Hannah and Joe are two colleagues. They both study horticulture. They've been studying ants lately for their entomology class. Hannah studied ants that farm aphids, while Joe studied ants that farm fungus.

Question: Which student learned more about ants that protect the aphids?
Answer: Hannah

Situation: Hannah and Joe are two colleagues. They both study horticulture. They've been studying ants lately for their entomology class. Hannah studied ants that farm aphids, while Joe studied ants that farm fungus.

Question: Which student learned more about ants that manage large herds of aphids ?
Answer: Hannah

Situation: Hannah and Joe are two colleagues. They both study horticulture. They've been studying ants lately for their entomology class. Hannah studied ants that farm aphids, while Joe studied ants that farm fungus.

Question: Which student learned less about ants that manage large herds of aphids ?
Answer: Joe

Situation: Hannah and Joe are two colleagues. They both study horticulture. They've been studying ants lately for their entomology class. Hannah studied ants that farm aphids, while Joe studied ants that farm fungus.

Question: Which student learned less about ants that store the aphid eggs?
Answer: Joe

Situation: Hannah and Joe are two colleagues. They both study horticulture. They've been studying ants lately for their entomology class. Hannah studied ants that farm aphids, while Joe studied ants that farm fungus.

Question: Which student learned more about ants that store the aphid eggs?
Answer: Hannah

Situation: Hannah and Joe are two colleagues. They both study horticulture. They've been studying ants lately for their entomology class. Hannah studied ants that farm aphids, while Joe studied ants that farm fungus.

Question: Which student learned more about ants that gather the aphid eggs?
Answer: Hannah

Situation: Hannah and Joe are two colleagues. They both study horticulture. They've been studying ants lately for their entomology class. Hannah studied ants that farm aphids, while Joe studied ants that farm fungus.

Question: Which student learned less about ants that gather the aphid eggs?
Answer: Joe

Situation: Pam and Ellie are two entomologists. they are both studying ants at the moment: Ellie is studying leafcutter ants, while Pam is studying ants that farm aphids.

Question: Which scientist read more about aphid honeydew?
Answer: Pam

Situation: Pam and Ellie are two entomologists. they are both studying ants at the moment: Ellie is studying leafcutter ants, while Pam is studying ants that farm aphids.

Question: Which scientist read less about aphid honeydew?
Answer: Ellie

Situation: Pam and Ellie are two entomologists. they are both studying ants at the moment: Ellie is studying leafcutter ants, while Pam is studying ants that farm aphids.

Question: Which scientist read less about dairying ants milking the aphids?
Answer: Ellie

Situation: Pam and Ellie are two entomologists. they are both studying ants at the moment: Ellie is studying leafcutter ants, while Pam is studying ants that farm aphids.

Question: Which scientist read more about dairying ants milking the aphids?
Answer: Pam

Situation: Pam and Ellie are two entomologists. they are both studying ants at the moment: Ellie is studying leafcutter ants, while Pam is studying ants that farm aphids.

Question: Which scientist read more about honeydew with an increased concentration of amino acids?
Answer: Pam

Situation: Pam and Ellie are two entomologists. they are both studying ants at the moment: Ellie is studying leafcutter ants, while Pam is studying ants that farm aphids.

Question: Which scientist read less about honeydew with an increased concentration of amino acids?
Answer: Ellie

Situation: Pam and Ellie are two entomologists. they are both studying ants at the moment: Ellie is studying leafcutter ants, while Pam is studying ants that farm aphids.

Question: Which scientist read less about farming ant species gathering aphid eggs ?
Answer: Ellie

Situation: Pam and Ellie are two entomologists. they are both studying ants at the moment: Ellie is studying leafcutter ants, while Pam is studying ants that farm aphids.

Question: Which scientist read more about farming ant species gathering aphid eggs ?
Answer: Pam

Situation: Pam and Ellie are two entomologists. they are both studying ants at the moment: Ellie is studying leafcutter ants, while Pam is studying ants that farm aphids.

Question: Which scientist read more about farming ant species storing aphid eggs ?
Answer: Pam

Situation: Pam and Ellie are two entomologists. they are both studying ants at the moment: Ellie is studying leafcutter ants, while Pam is studying ants that farm aphids.

Question: Which scientist read less about farming ant species storing aphid eggs ?
Answer: Ellie