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1000 points
1000
What is the difference between echinoderms and arthropods?
a. Echinoderms have an endoskeleton, while arthropods have an exoskeleton.
b. Echinoderms are invertebrates, while arthropods are vertebrates.
c. Echinoderms are have joint legs, while arthropods have spiny legs.
a. Echinoderms have an endoskeleton, while arthropods have an exoskeleton.
is a cnidarian a vertebrate or an invertebrate?
it is an invertebrate.
what are the 3 types of worms under the class of invertebrates?
flatworms
roundworms
segmented worms
what class of vertebrates do we belong to?
mammals
Which of the following is NOT true about reptiles ?
1.They are covered with scales
2.They live on land
3.They can not live if their skin dries out
3.They can not live if their skin dries out
When one side of the animal matches up exactly with the other side that animal has_________________?
symmetry
why is it important for amphibians to live near water?
their skin needs to stay moist or they will die.
1000 points
1000
what type of skin do echinoderms have?
spiny skin.
describe an invertebrate?
animals without back bones
list three things true of a sponge.
a. lives under water
b. filters water for food
c. is the simplest kind of invertebrate
describe why clams and oysters similar to each other?
They both are mollusks
what type of skin do echinoderms have?.
they have spiny skin.
Which of the following is not an invertebrate?
a. A Person
b. A starfish
c. A snail
a. A Person
arthropods are know as what type of invertebrates?
largest invertebrate group
What type of digestive syetem does a round worm have?
has a one-way digestive system
what are warm blooded animals?
Their body temperature does not change much
what group of vertebrates are not cold blooded?
birds and mammals
What is similar between a jawless fish and cartilaginous fish?
They both have skeletons made of cartilage
name two examples of cartilaginous fish.
state the difference between amphibians and a reptiles?
amphibians need to have moist skin, but reptiles have dry thick skin
list 3 examples of a reptile.
a lizard
snake
crocodile
what do female mammals do to their young?
they feed milk to their young
list 3 things true about birds.
1. have feathers
2. they have two legs with clawed feet
3. they lay eggs with strong shells