Chapter 1
1.-
- Animals that have no backbone are invertebrates.
- Most invertebrates are very small
- The biggest group of invertebrates is the arthropods
- 95% of the animal species in the world are invertebrates
- Animals that have a backbone are vertebrates
2.-
Invertebrates:
- Arthropods –spider
- Mollusks – snail
- Sponges – sponge
- Cnidarians – jellyfish
- Echinoderms - starfish
- Flatworms - ocean flatworm
- Roundworms – threadworm
- Annelids – earthworm
- Vertebrates:
- Fish – tuna fish
- Amphibians – frog
- Reptiles – snake
- Birds – hummingbird
- Mammals – lion
3.-
- Animals that eat other animals: Carnivores
- Animals that have no backbone: Invertebrates
- Animals that eat plants: Herbivores
- An important group of invertebrates: Arthropods
- Animals that eat plants and animals: Omnivores
- When sperm joins with an egg: Fertilization
- Animals that produce sperm: Males
- Animals that produce eggs: Females
- An important group of vertebrates: Reptiles
- Animals that have backbone: Vertebrates
4.-
- How do scientists put animals into groups? When animals are the same in many ways.
- Why are people dangerous for animals? Because people cut down trees and also contaminate the environment.
- How long can a Galapagos tortoise live for? Galapagos tortoise can live for 150 years.
- How long does a mayfly usually live for? Mayfly usually lives for just a few hours.
- Do birds and reptiles give birth to baby animals? No, birds and reptiles lay eggs.
- How do mammals care for their babies? Mammals feed their babies milk and some big mammals stay with them for many years.
Chapter 7
1.-
- Birds have feathers
- Birds have no fur or hair
- Birds lay eggs
- Birds have wings
- Birds build nests
- Birds don’t feed their babies milk
2.-
- What is courtship? Courtship is when the male birds try to find female birds that they can mate with.
- Why do birds build nests? They build nest for keep their eggs and chicks safe and warm.
- What color are birds that build their nests on the ground? They are usually brown and speckled.
- Why do some birds have to make difficult journeys when they are very young? Because these birds have to migrate every year.
3.-
- Frigate bird: He pushes his red throat out
- Blue-footed booby: He shows his big feet.
- Songbird: He sings.
- Bowerbird: He builds a special place with bright colored things inside.
4.-
Three things
that birds use to make nests:
- Grass
- Mud
- Twigs
Three places
where birds build nests:
- Trees
- Cliffs
- On the ground
Four things
that chicks learn from their parents:
- To fly
- To feed
- To sing
- Keep safe
5.-
- Birds keep their eggs warm.
- Ostriches lay the biggest eggs.
- Chicks have a special tooth on their beak.
- Cuckoos lay their eggs in others birds’ nests.
Chapter 8
1.-
- Polar bear: It digs a den in the snow so its babies will be warm.
- Shrew: Its gestation time is only two week.
- Kangaroo: It grows in its mother's pouch for up to a year after it is born.
- Elephant: It stays close to its mother until it’s ten years old.
- Anteater: It carries its babies on its back for the first year.
- Leopard: It makes marks on trees when it's looking for a mate.
- Giraffe: It fights with its neck with other males when it's ready to mate.
- Person: You are one!
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