5 Written Questions

1. decimal system of measurement based on certain physical standards and scaled on multiples of 10
2. possible explanation for a set of observations or possible answer to a scientific question
3. well-tested explanation that unifies a broad range of observations.
4. Collection of living matter enclosed by a barrier that separates the cell from its surroundings; basic unit of all forms of life.
5. A signal to which an organism responds.

5 Matching Questions

1. controlled experiment
2. inference
3. responding variable
4. data
5. spontaneous generation

1. a evidence; information gathered from observation
2. b logical interpretation based on prior knowledge and experience
3. c factor is an experiment that a scientist wants to observe, which may change in response to the manupulated variable; also known as a dependent variable.
4. d hypothesis (disproven) stating that life could arise from non-living matter.
5. e a test of the effect of a single variable by changing it while keeping all other variables the same

5 Multiple Choice Questions

1. use of one or more of the senses-sight, hearing, touch, smell, and sometimes taste - to gather information
   1. data
   2. Homeostasis
   3. observation
   4. inference
2. Process by which a single parent reproduces by it self
   1. Cell fractionation
   2. Asexual reproduction
   3. observation
   4. Sexual reproduction
3. Process by which cells from two different parents unite to produce the first cell of a new organism
   1. Cell fractionation
   2. observation
   3. Sexual reproduction
   4. Asexual reproduction
4. Science that seek to understand the living world.
   1. Microscope
   2. Cell
   3. theory
   4. Biology
5. Process by which organisms maintain a relatively stable internal environment.
   1. hypothesis
   2. Homeostasis
   3. Metabolism
   4. data

5 True/False Questions

1. manipulated variable → factor in an experiment that a scientist purposely changes; also knows as independent variable.

   True        False

2. Electron microscope → Microscope that forms an image by focusing beams of electrons onto a specimen.

   True        False

3. Cell culture → Collection of living matter enclosed by a barrier that separates the cell from its surroundings; basic unit of all forms of life.

   True        False

4. Cell fractionation → group of cells grown in a nutrient solution from a single original all.

   True        False

5. Microscope → organized way of using evidence to learn about the natural world; also, the body of knowledge that scientists have built up after years of using this process

   True        False