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Chapter 4

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1.an inherited trait that increases an organism's chance of survival and reproduction in a certain environment
7.take their food in from the environment. no cell walls.
13.the survival and reproduction of organisms with particular traits
14.naturalist who observed that organisms in a population differ slightly from each other in form, function, and behavior
16.a group of organisms that can mate to produce fertile offspring
18.nonliving parts of the ecosystem
19.diverse group of one-celled organisms and their many-celled relatives. ex) amoebas
20.organism whose cells have nuclei and cell walls. ex) mushroom
2.all the members of the same species that live in the same place at the same time
3.the selective breeding of organisms by humans for specific characteristics
4.many-celled organisms that have cell walls and that make their own food using the sun's energy
5.living and once living parts of an ecosystem
6.the process of two species evolving in response to long-term interaction with each other
8.all the organisms living in an area together with their physical environment
9.a group of various species that live in the same place and interact with each other
10.a change in the genetic characteristics from one generation to the next
11.an individual living thing
12.archaebacteria, eubacteria, protists, fungi, plants, animals.
15.the ability of one or more organisms to tolerate a particular chemical designed to kill it
17.place an organism lives

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