TEST 2 STUDY GUIDE ANSWERS 1) Mitosis 2) 1; 2 3) Yes 4) Sexual Reproduction 5)2; 4 6) No 7) Spores 8) Eggs & sperms 9) A fertilized egg 10) Only cells that have 23 SINGLE chromosomes. All other cells have 23 PAIRS of chromosomes. 11) DNA and Proteins 12) Mitosis 13) Interphase, Prophase, Metaphase, Anaphase, Telophase. 14) No Interphase before 2nd round of meiosis. 15) Two diploids 16) Four haploids 17) Mitosis 18) Meiosis 19) Body Cells 20) Eggs & sperm 21) Archean, Proterozoic, Paleozoic, Mesozoic, Cenozoic 22) There was no oxygen when the first organisms were around. Only CO2. 23) They are eons because there is no fossil evidence to help put a time frame on how long ago they existed. 24) Horse 25) Earthquakes, volcanic eruptions, tsunamis, mountains can be formed 26) There was one creation, a natural catastrophy occurred, the remaining few organism repopulated the world. 27) Environmental pressures internal need to bring changes into the bodies which are then inherited. 28) A population that has two or mor...