1. (2021六下·集美期中) Read and judge. 阅读科普短文，判断对错。

	length	weight	teeth	tail	eat	can
sperm whales (抹香鲸)	15 meters	35 tons (吨)	50	8 metres	squid, lobsters  sharks	dive into the deep cold water
killer whales (虎鲸)	8 meters	3600 kilograms	40	6 metres	fish, birds seals whales	jump out of the water to eat birds

1. （1） Sperm whales is shorter than killer whales.
3. （2） Sperm whale is heavier than killer whale.
5. （3） Sperm whale has 5 more teeth than killer whale's.
7. （4） Killer whale eat squid and lobsters for food.
9. （5） Killer whale can eat birds.