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Key Terms
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Esssay
100
What is an invertebrate?
An animal with no backbone.
100
__________ are eight-legged invertebrates.
Arachnids
100
Insects have a head, thorax, and an abdomen.
true
100
What are warm-blooded milk feeders?
mammals
100
What are amphibians?
Vertebrates that begin their lives in water with gills and end their lives on land with lungs.
200
What is a vertebrate?
An animal with a backbone.
200
Vertebrates have ______________.
backbones
200
Animal cells have chloroplast.
false, only plant cells do
200
What are cold-blooded vertebrates?
Reptiles
200
Compare how aniaml and plant cells are alike and different.
:)
300
What are tentacles?
Slender, flexable body part used to touch, hold, or move with.
300
An invertebrate that has a body like a tube with an opening at each end is a ______________.
roundworm
300
Planarians are flatworms that have the ability to grow new body parts.
true
300
Arthropods with 5 pairs of legs and antennae are called?
crustaceans
300
What are mammals?
Vertebrates that live in water or on land and feed milk to their young.
400
What is a parasite?
An organism that harms another organism by living on or in it and taking nutrients from it.
400
Arthropods with 4 pairs of legs and 2 body sections are called?
arachnids
400
An arthropod that has many body segments and obtains food with its posion claws is millipede.
false, centipede
400
One invertebrate that lives in water, catches food with its stinging cells, and moves by squeezing water is a ?
jellyfish
400
Describe some ways all fish are alike.
All fish are cold-blooded, they have fins, breath with their gills, and live in water. Fish have a shape that help them swim through the water, and they have hard scales to protect their bodies.
500
What does regenerate mean?
To regrow lost body parts.
500
The animal group with the most species is the _________.
arthropods
500
Birds are cold-blooded vertebrates.
false, birds are warm-blooded egg layers.
500
An invertebrate that lives in water, has no organs, and take in water and nutrients through small holes is called?
sponge
500
In what ways are insects differnt from arachnids?
Insects are different because they have 3 body sections where as arachnids only have 2. Insects have antennaes and three pairs of legs, arachnids have no antennaes and have 4 pairs of legs.