Q1. What is the passage mainly about?

1. AHow to take care of a small cut
2. BWhy chimpanzees have more hair than humans
3. CA study that compared how fast wounds heal in humans and other animals
4. DHow sweat glands keep monkeys cool

第1文で「さまざまな動物で傷がどれくらいの速さで治るか」を調べたとあり、人間と比べた結果が全体の中心なので C。

Q2. How fast did human wounds close?

1. AAbout 0.25 mm a day
2. BAbout 0.6 mm a day
3. CAbout 3 mm a day
4. DAbout 24 mm a day

Human wounds closed only about 0.25 mm a day. とあるので A。0.6 mm はヒヒ、24 は患者の人数。

Q3. In this passage, "slower" means the human wounds ...

1. Abecame bigger
2. Bhurt more
3. Cneeded medicine
4. Dtook more time to close

slow は「遅い」。three times slower は「3倍遅い」＝ふさがるのに時間がかかる、なので D。

Q1. What did the research team measure?

1. AHow many sweat glands each animal has
2. BHow quickly wounds closed each day in different species
3. CHow long humans and chimpanzees live
4. DWhich medicine heals wounds the fastest

measured how many millimeters a wound closes each day in several species とあるので B。

Q2. Which statement is true according to the passage?

1. AMonkeys healed much more slowly than mice.
2. BHuman wounds closed faster than monkey wounds.
3. CThere was little difference between monkeys and rodents.
4. DThe human patients had surgery on their hair.

Monkeys and rodents healed at almost the same speed とあるので C。人間だけが遅かった点がポイント。

Q3. What does the passage suggest about slow healing in humans?

1. AIt may be a cost of changes that helped humans stay cool.
2. BIt is common to all primates.
3. CIt was caused by the surgery itself.
4. DIt helps humans run faster in the heat.

The researchers think it may be a cost of evolution のあとで、体毛の減少と汗腺の増加が涼しく保つのに役立ったと述べているので A。

Q1. What is the main idea of the passage?

1. ASweat glands have been proven to cause slow healing.
2. BRodents heal faster than all primates.
3. COlder patients should avoid skin surgery.
4. DHuman wounds seem to heal unusually slowly, possibly because of an evolutionary trade-off.

人間の傷の治りが約3倍遅いことを示し、後半で汗腺の増加などによる進化上の説明を紹介しているので D。A は the team has a hypothesis とあり、証明されたわけではないので誤り。

Q2. Why does the author conclude that slow healing is specific to humans?

1. ABecause the human patients were the oldest group
2. BBecause the other primates and the rodents healed at similar rates
3. CBecause chimpanzees have no sweat glands
4. DBecause the study was published in 2025

The other primates and the rodents all healed at similar rates, so the delay seems to belong to humans alone とあるので B。

Q3. Which of the following is a limitation mentioned in the passage?

1. AThe monkeys were studied in a laboratory in Japan.
2. BThe researchers did not measure human wounds.
3. CThe human participants were relatively old, which could have influenced the results.
4. DThe rodents healed too quickly to be measured.

The patients were about 69 years old on average, so age and illness may have affected the results とあるので C。