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15 Cards in this Set
- Front
- Back
Why do scientists classify fish, amphibians, reptiles, birds, and mammals together in one group?
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Because they all have a similiar body structure- an internal skeleton and backbone.
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What are similiar body structures that related species have inherited from a common ancestor called?
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homologlus structures
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What similarities in developement lead scientists to infer that turtles, chickens and rats share a common ancestor?
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They all have a tail and tiny gill slits in their throats.
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Evidence supports the conclusion that turtles are more closely related to what animal then they are to rats?
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Chickens
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What two charecteristics do all plants share?
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are autotrophs that produce their own food, and are eukaryotes that contain many many cells.
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What is the process that plants make their own food called?
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Photosynthesis
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What is the boundary called that surrounds the cell membrane and seperates the cell from the environment?
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Cell Wall
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What are cell walls mostly made of?
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Cellulose- a chemical that makes the walls rigid.
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What is the vasculat tissue through which food moves?
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phloem
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What two charecteristics do all seed plants share?
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They have vascular tissue and use seeds to reproduce.
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A plant that produces seeds that are enclosed in a fruit is called what?
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Angiosperm
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What is the reproductive structure of an angiosperm?
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flower
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What are two charecteristics of an angiosperm?
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they produce flowers and fruits
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What are the two major groups of the angiosperms?
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Monocots and Dicots
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When a flower is pollinated, a grain of pollen falls on what?
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first on a stigma
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