Animals With and Without Backbones 1
Which of the following is NOT an invertebrate?
A. a person
B. a starfish
C. a snail
A. a person
Why do we classify clams and oysters as similar to each other?
A. They both are sponges.
B. They both are mollusks.
C. They both are echinoderms.
B. They both are mollusks.
What makes echinoderms different from arthropods?
A. Echinoderms have an endoskeleton, while arthropods have an exoskeleton.
B. Echinoderms are invertebrates, while arthropods are vertebrates.
C. Echinoderms are have jointed legs, while arthropods have spiny legs.
A. Echinoderms have an endoskeleton, while arthropods have an exoskeleton.
Why is it important for amphibians to live near water?
Their skin needs to stay moist or they will die.
When one side of the animal matches up exactly with the other side, that animal has_________________?
symmetry
Which is true of warm-blooded animals?
1. They get heat from outside their bodies.
2. Their body temperature does not change much.
3. Their body temperature changes with their surroundings.
2. Their body temperature does not change much.
What is the similarity between a jawless fish and cartilaginous fish?
1. They both have skeletons made of cartilage.
2. Neither of them have skeletons.
3. They both are warm-blooded animals.
1. They both have skeletons made of cartilage.
What type of skin do echinoderms have?
spiny skin
Which of the groups below does a salamander belong to?
1. Mammals
2. Amphibians
3. Reptiles
2. Amphibians
Which of the following is NOT true about reptiles?
1. They are covered with scales.
2. They live on land.
3. They cannot live if their skin dries out.
3. They cannot live if their skin dries out.
Which group of vertebrates are NOT cold-blooded?
1. Bony fish
2. Reptiles
3. Birds
3. Birds
What is a vertebrate?
an animal with a back bone
Is a cnidarian a vertebrate or an invertebrate?
It is an invertebrate.
What is an invertebrate?
an animal without a backbone
What is an endoskeleton?
an internal support structure
What is an exoskeleton?
a hard covering outside the body, which protects the body
What kind of skeleton does a bony fish have?
a skeleton made of bone
What are the 3 types of worms classed as invertebrates?
1. flatworms
2. roundworms
3. segmented worms
What are the 3 classes of fish that are vertebrates?
1. jawless fish
2. cartilaginous fish
3. bony fish
What is the difference between warm-blooded and cold-blooded animals?
Warm-blooded animals' body temperature does not change much - it's constant. With cold-blooded animals, their body temperature changes based on their surroundings.
What class of vertebrates do we (humans) belong to?
mammals
Give 3 examples of amphibians.
1. frogs
2. toads
3. salamanders
Reptiles cannot breathe through their skin. What do they breathe with and why?
Because of their hard and dry, thick skin, they are not able to breathe through it. That's why they are known as waterproof. They use lungs to breathe.