A painting of an orange cat sitting in a glass bowl, with goldfish floating beside it and a potted plant by the window
Body 101 · Lesson 3 · ages 8 to 13

Plant, fish, cat: different bodies, same jobs to do

Every living thing has to breathe, find food, move things around its body and hold itself up, but each one solves the same problems in very different ways. Pick a living thing, then tap a body system. Tap the numbers on the picture to read more.

O₂ CO₂

Tap the same system again to see the whole body · A dashed system is one this living thing does not have. Tap it to find out why

RememberEvery living thing faces the same problems, but the answers depend on where it lives. A fish lives in water, so it breathes with gills. A cat lives on land, so it breathes with lungs. A plant stays in one place, so it makes its own food from light.
Clay leaves, a feather and small pebbles on a pale pink table
Comparison tablePlant · fish · cat · human

Same problem, different answers

Compare them with your own body too. Tap a system above and its row lights up in the table.

GameWhose is it?

Which body does this belong to?

Tap a label, then tap the box of the living thing you think it belongs to

Correct: 0 of 12
Plant
Fish
Cat

Review10 questions

Test yourself

Correct: 0 of 10

Fancy a game on this lesson?

Every question from this lesson is in the Body 101 arena. Race the clock, duel someone at home, play as a team, beat the bosses, or practise with no timer at all.