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Nested Animal Loops

Animals can be placed inside loops when they share a feature. A large loop holds a wider set, and a smaller loop inside it holds a narrower set.

In the picture

  1. The blue rope loop: animals with a backbone
  2. The red rope loop: animals with four limbs
  3. The sparrow’s wing feathers: a feature of birds
  4. The mouse’s back fur: a feature of mammals

Examples

  • A pet dog and a cat both have a backbone and four limbs.
  • A robin has feathers, while a squirrel has hair.

Quiz: Nested Animal Loops (Age 11)

  1. Which feature puts animals in the large outer loop?

    • Having four limbs
    • Having feathers
    • Having a backbone
  2. What makes a group of animals sit in a smaller loop inside another loop?

    • They are bigger than the animals in the larger group
    • They live in the same habitat as the larger group
    • They share more features than the larger group
  3. Which statement about a backbone is true on the card?

    • Many animals have a backbone, but not all do
    • Every animal has a backbone
    • Only animals with four limbs have a backbone

The answers, each with its explanation, are in the app. This lesson has left the free week, so its quiz is part of the subscription.

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Nature, Age 11