BIOL 1406 ON-LINE ASSIGNMENT DR. JORDAN 9/1/2011 Please complete the following assignment. Select the correct answer for each choice question. 1. a) b) c) d) e) An organ, such as the liver, is composed of _____. organs populations atoms communities tissues 2. Which of these is an organ system? a) b) c) d) e) stomach mucosa dog digestive gamete 3. a) b) c) d) e) What are the two main types of cells? bacteria and archaea plant and animal bacteria and protists prokaryotes and eukaryotes bacteria and eukaryotes 4. a) b) c) d) e) The cell in the figure is a(n) _____ cell. prokaryotic fungal animal bacterial plant 5. The cell in the figure is a(n) _____ cell. a) prokaryotic b) c) d) e) bacterial animal archaeal plant 6. DNA is composed of building blocks called _____. a) b) c) d) e) nucleic acids Gs nucleotides adenines amino acids 7. In eukaryotic cells DNA has the appearance of a _____. a) b) c) d) e) single strand letter U double helix triple helix circle 8. Which of the following is a correct match of cell type with structure? a) b) c) d) e) nerve cell ... closely joined skin cell ... has a large volume intestinal cell ... closely joined muscle cell ... has proteins that slide back and forth skin cell ... has long extensions 9. Which of these provides your body with energy? a) b) c) d) e) minerals fats oxygen vitamins light 10. Plants use _____ as a source of energy. a) b) c) d) e) minerals fats oxygen vitamins light 11. What element is found in all organic compounds? a) b) c) d) e) carbon oxygen helium iron nitrogen 12. Plants obtain carbon from _____. a) b) c) d) e) water carbon dioxide sugar oxygen glucose 13. What name is given to organisms that convert the carbon in organic compounds into carbon in carbon dioxide? a) b) c) d) e) autotrophs heterotrophs plants recyclers decomposers 14. Prokaryotic cells are found in the domain(s) _____. a) Bacteria and Archaea b) Bacteria and Eukarya c) Bacteria and Protista d) Bacteria e) Protista and Archaea 15. In the five-kingdom system, prokaryotes are placed in the kingdom _____. a) b) c) d) e) Protista Animalia Fungi Plantae Monera 16. Which one of the following statements is true? a) DDT does not help prevent disease from passing from agricultural animals to humans. b) Cost was a major factor in the United States government's decision to ban DDT. c) Many African governments concluded that the potential long-term health effects of DDT were not as serious as the immediate problem of insect control. d) DDT cannot accumulate in the fat of animals. e) The DDT ban in the United States has made it very difficult to control agricultural insect pests.