Name: ______Period: ______

Biology - Science of Life

Section 1-1 Themes of Biology

  1. When did the first life forms probably arise on Earth?
  2. What was the first organism like?
  3. Where did these first cells live?
  4. Over time, organisms ______and new kinds of ______arose from ______of organisms and came to inhabit every ______of the Earth.
  5. Name several things that the study of biology would include.
  6. Name 6 unifying themes of biology.
  7. What is a cell? Where are they found?
  8. Cells are ______but highly ______.
  9. Are all cells alike? Explain.
  10. All cells are surrounded by a ______& contain ______instructions.
  11. Genetic instructions are used by cells to make new ______and new cell ______.
  12. How do new cells produced by unicellular organisms compare to the parent unicellular organism?
  13. How do mature multicellular organisms begin their life?
  14. If multicellular organisms begin their life as one cell, how do they have so many cells? Explain.
  15. Does homeostasis occurs in unicellular &/or multicellular organisms?
  16. Genetic information is passed to offspring during ______.
  17. What molecule contains the cell’s hereditary information?
  18. How does DNA exist in multicellular organisms? In unicellular organisms?
  19. In multicellular organisms, each body cell has an ______copy of its DNA.
  20. Does each cell in a multicellular organism use all the genes on its DNA? Explain.
  21. When a sperm joins with an egg to make a fertilized cell, what happens next to this cell?
  22. New organisms from sexual reproduction have ______material from both parents.
  23. New cells or organisms from asexual reproduction have ______genetic information.
  24. Do individuals or populations evolve?
  25. What is the driving force for evolution?
  26. Competition for what types of resources drives natural selection?
  27. Organisms that survive and reproduce are ones with ______traits.
  28. Name 3 things organisms must get from the environment to survive.
  29. What has been the effect of man’s activities on many ecosystems?
  30. Living things are ______and need a constant supply of ______.
  31. What process supplies energy for organisms on Earth?
  32. Autotrophs trap ______and use this energy to combine ______and ______into______and starches.

Section 1-2 World of Biology

  1. List 6 characteristics shared by all living things.
  2. All living things composed of ______.
  3. Cells may be specialized in ______organisms. What does this mean?
  4. What is always true about cell size?
  5. Living things are organized at what 2 levels?
  6. How are cells organized in multicellular organisms?
  7. The energy from metabolism is used for ______, ______, and ______of organisms.
  8. What 2 things must occur for living things to grow?
  9. Explain why development is necessary for multicellular organisms?
  10. Is reproduction essential to the survival of a species? Explain.
  11. Sexual reproduction produces offspring ______to the parents.

Section 1-3 Scientific Method

  1. Scientists solve problems using the ______.
  2. The first step of the scientific method is when scientists make ______of the natural world.
  3. What does a scientist usually employ in making their observations?
  4. What is sampling & why is it used by scientists?
  5. What 2 things must be true for samples to be useful?
  6. To be useful, data must be ______into ______,
  7. ______, and ______, or maps.
  8. Once an observation is made, the second thing a scientist must do is to develop a(n) ______.
  9. All hypotheses must be ______to give supporting evidence.
  10. Name the 2 groups in a controlled experiment.
  11. Both groups in an experiment are identical except for ______factor called the ______.
  12. Name the 2 types of variables in a controlled experiment.
  13. After data is collected and organized, it must be ______to tell if it is reliable.
  14. If experimental data does not support the hypothesis, what should be done?
  15. How is a theory formed?
  16. What is the difference between a field biologist and a laboratory biologist? Do they both use the scientific method?
  17. What do scientists do with the results of their scientific studies?

Section 1-4 Microscopes & Measurement

  1. When would a microscope be used?
  2. Do all microscopes have the same magnification & resolution?
  3. What type of scope is used to view viruses & cell parts?
  4. What produces an image with the electron microscope?
  5. Name the 2 main types of electron microscopes.
  6. What is the highest magnification for the TEM? For the SEM?
  7. Can electron microscopes be used to view living cells?
  8. What type of scope gives a magnified view of an object’s surface?
  9. What is the standard unit of measurement used by scientists?
  10. The SI system is based on units of ______with designated ______.
  11. Give the SI prefix for these base units --- 1000, .01, .001, .000001, .000000001, & .000000000001.
  12. Give the SI unit for area, volume, and time.