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Vertebrates
Fish, birds, and humans are all because they have backbones.
Invertebrates
like worms and insects don’t have a backbone.
Whale
The blue _ is the biggest animal in the world.
Insect
A bee is a small _ that makes honey.
Food chain
If one animal in the disappears, it can affect all the others.
Predators
Lions are that hunt other animals for food.
Made up
This toy is of small plastic parts.
Tiny
My baby brother has hands and feet.
Breed
Some farmers cows for milk and meat.
Hatch
The eggs will after three weeks, and the baby birds will come out.
Scent
The dog followed the of the food.
Dry
After the rain stopped, the ground was still not .
Mate
During spring, many birds look for a .
Mammals
Dogs, cats, and people are all .
Before long
The dark clouds came, and , it started to rain.
Survive
Animals need food and water to .
Dam
The beavers built a to stop the river water.
Nest
The bird made a in the tree to lay its eggs.
Prey
The cat waited quietly for its .
Habitat
The polar bear’s natural is cold and snowy.
Fertilization
is an important step in making new plants or animals.
Birds of prey
like eagles have sharp eyes and strong claws.
Preen
The bird began to its feathers after flying.
Chain
The dog was tied to a in the backyard.
Sticky
Don’t touch the honey; it’s very .
Owl
We saw an in the forest at night.
Hollow
The tree is and has a small animal living inside.
Hang
I will the picture on the wall in the living room.
Amphibians
Frogs are because they live in water and on land.
Gills
Fish use their to breathe under water.
Fins
The fish moves quickly in the water using its .
Plates
Some dinosaurs had large on their backs for protection.
Scales
Snakes have dry skin with small .
Camouflage
The lizard uses to hide from enemies.
Reptile
A snake is a type of that lays eggs.
Shell
The turtle pulled its head into its when it felt danger.
Turtle
We saw a walking slowly on the beach.
Poison
Some snakes have that can hurt or kill.
Patiently
He waited for the doctor to call his name.
Crocodilians
Crocodilians are large animals with strong jaws and live near water.
Ectothermic
Lizards are ectothermic and like to sit in the sun to get warm.
Thanks to
Thanks to the teacher’s help, I passed the exam.
Bite
Be careful! That dog might bite.
Backbone
The human backbone helps support the body and lets us stand tall.
Starfish
We saw a starfish lying on the sand.
Escapes
The rabbit escapes quickly when it hears a loud sound.
Clear
The water in this lake is very clear, you can see the fish!
Octopus
An octopus can change its shape and color to hide.
Jellyfish
Don’t touch the jellyfish—they can sting you.
Breakup
The breakup of the ice made it hard for the boat to pass.
Palm
There are many palm trees near the beach.
Tourists
In summer, many tourists come to visit the city.