Watch the video to learn more about animals with 3-stage or 4-stage life cycle.
Key concepts of Life Cycles :
All living things go through a life cycle. A cycle is a pattern that repeats itself.
Living things reproduce to ensure the continuity of their own kind.
3-stage life cycle
Chicken: Egg (hard shell) => Chick (have wings) => Adult Chicken (have wings)
Cockroach: Egg (eggs in egg case) => Nymph (moults, no wings) => Adult Cockroach (have wings)
Grasshopper: Egg => Nymph (moults, no wings) => Adult Grasshopper (have wings)
Dragonfly: Egg (in water) => Nymph (moults, breathes using gills to take in dissolved oxygen from the water) => Adult Dragonfly (no gills, breathes through holes in its body, have wings)
Frog: Egg (in water) => Tadpole (breathes using gills) => Adult Frog (lives on land, takes in atmospheric air (oxygen) using lungs and moist skin, also able to take in dissolved oxygen through their moist skin)
4-stage life cycle
Butterfly: Egg (under a leaf) => Larva (Caterpillar) => Pupa (does not eat or moult) => Adult Butterfly
Mosquito: Egg (in stagnant water) => Larva (Wriggler) (breathes using a breathing tube to take in atmospheric air (oxygen) above the water surface) => Pupa (breathes using breathing tubes) => Adult Mosquito (comes out of the water, with wings)
Beetle: Egg => Larva (e.g mealworm larva) => Pupa => Adult Beetle (have wings)
Take this quiz to recap what you have learnt. Aim to reach the moon!