Mammals
What are vertebrates?
What do birds have instead of teeth?
They have beaks.
They are both vertebrates.
Arthropods are invertebrates and have what?
They have external skeletons.
What are the three groups of molluscs?
What are omnivores?
Animals that eat both meat and plants.
What do birds have in their lungs that differ from mammals?
They have large air sacs in their bodies.
What do reptiles have that amphibians do not have?
Reptiles have scales.
How many legs do insects have?
They have six legs.
What group do starfish, sea cucumbers, and sea urchins fall under?
Echinoderms.
What does it mean when an animal fully develops inside the mother first?
They are viviparous.
They are oviparous. They lay eggs.
Most reptiles are ... and eat small animals.
Most reptiles are carnivores.
What has four antennae and a very hard external skeleton?
Crustaceans.
Cnidarians are aquatic animals and their bodies are made up of what?
They are made up of a jelly-like substance and water.
How do marine mammals breathe?
They breathe through their blow hole.
What do all birds have?
They use gills to breathe.
What only lives on land and has a long, segmented body?
Myriapods.
What is the simplest animal on earth?
A sponge - they cannot move and have no mouth, muscles, heart, or brain.
How do mammals keep warm?
They have fur, hair, or thick skin.
What does it mean to sit on the eggs to protect and warm them?
This means to incubate.
Because most amphibians are carnivores, they use what to catch insects and other animals?
They use sticky tongues.
What animal may produce sticky silk to capture prey?
Arachnids.
What can happen if a species goes extinct?
There can be a change in the balance of the ecosystem.