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SCIENCE END OF YEAR
end of year test...HUGE
| Question | Answer |
|---|---|
| conjugation | when a cell transfers its genetic material to another cell without cell division, still changing the cells DNA |
| binary fission | a type of asexual production when one parent cell breaks into two daughter cells |
| endoskeleton | an internal supporting skeleton found inside vertebrates |
| exoskeleton | a hard enternal skeleton found on the bodies of invertebrates |
| arachnids | they have a hard exoskeleton and jointed appendages for movement examples: spiders ticks and mites |
| crustaceans | they mostly live in water. the have a hard external shell which protects them. example: crad lobster barnicle |
| insects | invertebrate that has an exoskeleton that covers their whole body. example: butterfly bee ant |
| arthropods | invertebrate the are seperated into three different groups: insects crustaceans arachnids. they have limbs of joints that allow them to move |
| mollusk | they have a protecting hard shell and use their "foot" to move. they are invertebrates. example: snail slug oyster clam squid octopus |
| heterotrophan | animal who cannot make their own food example: Human |
| autotroph | an animal who can make their own food example: Plant |
| worms | invrtebrate whose bodies are divided into segments. example: earthworm round worm flatworm |
| echinoderm | invertebrate that central part contains their organs and mouth for feeding example: sea star sea urchin sand dollar sea cucumber |
| vertebrate | animal with a back bone or spinal colmn |
| invertebrate | an animal without a back bone or spinal colmn |
| birds | vertabrate that can fly. they have large chest muscles hollow bones feathers. they are warm blooded xample: eagle |
| fish | vertebrate that spends their life in water. they are cold blooded and have a swim bladder. three groups bony jawless and cartaligous. Example: Shark |
| amphibains | vertebrates that spend the begining of their llife in water, and then later on land. cold blooded. example: toad frog |
| ectothermic | when animals have a variable body temperature that regulates by their external enviroment |
| reptiles | cold blooded vertebrate that breath with lungs and have scale covered skin. they lay eggs example: turtle snake lizard crocidile |
| endothermic | animals who have a constant warm body temperature thats internally regulated. another name is warm blooded |
| marsupials | mammals who are born young and under developed. they use pouches to raise their young. example: kangeroo |
| monotremes | mammal that lays eggs example: platapus |
| mammary gland | female organs that produce milk for their young |
| mammal | vertebrate that has fur. females have mammary glands while pregnant. |
Created by:
MandMc
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