Invertebrates
Describe an invertebrate. Name one characteristic.
-do not have internal skeleton
-some have a type of shell/armor/exoskeleton
-all of them are oviparous
Describe one characteristic of a vertebrate.
-they have internal skeleton with a vertebral column
-have a head and a trunk
-they always have 4 limbs
What are the two are groups we use to classify animals?
Invertebrates and Vertebrates.
What is an example of an echinoderm?
-starfish
-sea urchin
What group of invertebrates do jellyfish belong to?
Cnidaria
What is an amphibian? Name one characteristic and give an example.
-land animals BUT they have to live close to the water
-they get oxygen from water and air
-thin skin
-frog
How do animals take in oxygen? There are three ways.
-gills
-Tracheae
-lungs
What group of animals would an ostrich be a part of?
-Birds
True or False. Worms can only live on land.
False.
What is one difference between mammals and reptiles?
-mammals bodies are covered in hair, reptiles are covered in scales
-mammals are viviparous, reptiles are oviparous
-mothers nurse their young with milk from their mammary glands
What is viviparous? Give an example of an animal that is viviparous.
- Animals that form their offspring inside of their bodies and give birth to them.
-rabbits, dogs, whales, lions, etc.
Name two differences from the groups of fish and birds.
-fish are aquatic, birds are land animals
-fish bodies are covered in scales, birds are covered in feathers
-fish limbs are fins, bird limbs are wings
fish get oxygen through water, birds get it from air
Give two examples of an Arthropod?
-spider
-prawn
-beetle
-dragonfly
-millipede
True or False: A bat belongs to the group of BIRD vertebrates.
False: They are mammals.
Depending on how animals feed, they are categorized into 3 groups. What are they?
-omnivores
-carnivores
-herbivores
True or False: Vertebrates can have 1-4 limbs.
False.
Name all of the groups of invertebrates. There are 5.
-Cnidaria, Worms, Echinoderms, Molluscs, Arthropods
Name all groups of vertebrates. There are 5.
Fish, Amphibians, Reptiles, Mammals, Birds
What is an oviparous animal? Define and give an example.
-Oviparous animals lay eggs and their offspring hatch outside of their body.
-snakes, frogs, birds
Give an example of an invertebrate and vertebrate. Tell us the difference.
-difference is: invertebrates do not have skeletons like vertebrates
-Vertebrates always have four limbs