Name: _______________
Unit 2 Study Guide – Animal Life Cycles
1. What are the characteristics of these animal families?
Reptiles
Amphibians
Fish
Cold blooded
Vertebrates
Lay leathery shelled
eggs
Dry scales
Vertebrates
Cold blooded
Lay jelly coated eggs
in water
Live in land and water
Live in water
Wet scales
Lay eggs in water
Cold blooded
Mammals
Insects
Birds
-give birth to live
young
-warm blooded
-breathe with lungs
-produce milk to feed
young
3 pairs of legs (6)
3 body parts
(head, thorax and
abdomen)
Exoskeleton
-Warm blooded
-feathers and wings
-lay hard shelled eggs
-vertebrates
2. Vertebrate/Invertebrate
A vertebrate is an animal with a backbone.
An invertebrate is an animal without a backbone.
3. Life Cycle/example
A life cycle is the stages an animal goes through in its life.
4. Metamorphosis - it is a physical change from one thing to another
(frogs, butterflies)
5. Adaptations
-a change in an animal that makes it better able to survive in particular
environment (sharp teeth – eating, camouflage, strong sense of smell)
6. What are things that we can do to help protect animals?
-stop destroying their habitats
-don’t litter
-don’t over hunt a specific species
7. Animal Research
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8. Parental Care
-travel with them and protect them from harm
-teach skills to help them survive on their own
-feed them
-keep them
-clean them
9. Endangered/Extinct
Endangered means that the animal will soon be extinct if nothing is
done about it.
Extinct means that the animal has already died out and there aren’t
any left.
10. Draw the life cycle of a butterfly. Label the name of each stage.
Egg – Caterpillar/Larva – Gets bigger (eats a lot) – Pupa/Chrysalis –
Adult butterfly
11. Draw the life cycle of a frog. Label the name of each stage.
Egg- Tadpole – Tadpole with legs – froglet- Adult frog