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15 Cards in this Set

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