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Unit 2 The Organism and Its Environment

Victoria Perkovich

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Across
1.chemicals that give leaves thier green pigment
5.the collective name of all the DNA in a cell
8.waterloss due to plant respiration
11.any heritable trait that has evolved over time by the process of natural selection
14.'knees" that trees growing in areas with fluctuating water tables have
15.the enzyme that catalyzes carboxylation
17.elements that are necessary in large quantities for sustained life of an organism
19.eats only meat
20.openings on the surface of leaves through which CO2 enters the plant
Down
2.the point at which no further photosythesis occurs (3 Words)
3.eats only plants
4.the movement of individuals between local populations
6.the change in allele frequencies by random chance (2 Words)
7.heritable changes in a gene or chromosome
9.the process by which plants harness the energy from the sun
10.outward expression of a given gene
12.what type of organisms derive energy from the sun
13.eats dead and decaying materials
16.eats plants and animals
18.CAM pathways open at ____

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