1. In state forests and parks containing varieties of flowering trees and shrubs, there are signs that say “Take nothing but pictures, leave nothing but footprints.” These signs are necessary because (1) humans reduce biodiversity by removing flowering trees and shrubs (2) all animals feed directly on flowering shrubs that may be removed by people (3) removal of flowering trees and shrubs will increase habitats (4) flowering shrubs grow best in state forests and parks The amount and variety of different organisms in any ecosystem

2. A Brazilian forest is cut down and is replaced by a cornfield. A negative consequence of this practice is (1) an increase in the carbon dioxide released into the atmosphere (2) an increase in the size of predators (3) a decrease in biodiversity (different types of organisms) (4) a decrease in the amount of soil that is washed away during rainstorms

10. Biodiversity Lab

11. Structural tests 1.Leaves 2.Seeds 3.Stem cross section

15. BC X Y Z

16. Molecular tests 4.Paper Chromatography 5.Test for Enzyme M

21. Molecular/Genetic Tests 6.Simulated Gel Electrophoresis 7. Translating DNA Code to Protein

23. Electrophoresis

26. A T T C CG G A T C G A T C G C CG G T A A T A T CG G A T A T A C T C C Negative - Positive + A T T C C G G A T C G A T C G C C G G A T A T A C T C C G G T A A T A T C A T T C CG G A T C G A T C G C CG G T A A T A T CG G A T A T A C T C C

29. DNADNA RNARNA TA CG GC AU Fill in the missing mRNA bases and the amino acid sequence that corresponds to the DNA base sequence below. GUGCACCUGACU VALHISLEUTHR