Invertebrates 1
How are vertebrates and invertebrates different?
Vertebrates have a backbone, invertebrates do not.
What group of invertebrates do not have symmetry?
Sponges
There are warm-blooded and cold-blooded vertebrates. Warm-blooded vertebrates keep their body temperature at a constant by...
...breaking down food to get heat.
How do cold-blooded animals change their body temperature?
They change their body temperatures to the surroundings
What is the difference between echinoderms and arthropods?
Echinoderms have endoskeletons.
Arthropods have exoskeletons.
Jellyfish are a type of cnidarian. What kind of cells do they have in their tentacles?
They have poisonous stinging cells.
Arthropods are the biggest group of invertebrates. Name the four arthropod groups
Insects
Arachnids
Crustaceans
Centipedes and Millipedes
Jawless fish and cartilaginous fish have what in common?
They both have skeletons made of cartilage.
Amphibians and reptiles are both cold-blooded vertebrates. What is different about their skin?
Amphibians have moist skin. Reptiles have dry skin.
Two classes of warm-blooded vertebrates
Birds, Mammals
All arthropods have an ________. This helps them keep moisture in.
Exoskeleton
Tell me a difference between centipedes and millipedes
Centipedes - 1 pair of legs on each body section
Millipedes - 2 pairs of legs on each body section
What is the largest class of vertebrates?
Bony fish
Amphibians and reptiles are both cold-blooded vertebrates. How are they different?
Amphibians spend their lives in water and on land. Reptiles live on land.
How are arachnids and insects different?
Insects have three body sections and 6 legs.
Arachnids have two body sections, fangs and 8 legs.
What are three different types of worms?
flatworms, roundworms, segmented
Which type of worms usually live inside the bodies of other animals?
Roundworms
What things help birds fly?
Light, hollow bones.
Powerful lungs
Strong flight muscles
How do birds keep warm and dry?
Their light feathers keep them warm and dry
Why do some animals need a backbone and others do not?
Usually larger and heavier animals needs backbones to help them move about.
How do sponges get the food they need?
It filters the water for food
Most mollusks have shells and live in water. What are the only mollusks that live on land?
Snails and slugs
Most mammals give birth to their offspring. Female mammals give ________ to feed their young.
Milk
Two mammals that do not give birth, but they lay eggs.
Duck-billed platypus
Spiny anteater
What happens if an amphibian's skin dries out?
The amphibian will die because adults use their skin as well as their lungs to breathe.