Review Questions
4. The first forms of life on Earth were ________.
- plants
- microorganisms
- birds
- dinosaurs
5. A suggested and testable explanation for an event is called a ________.
- hypothesis
- variable
- theory
- control
6. Which of the following sciences is not considered a natural science?
- biology
- astronomy
- physics
- computer science
7. The type of logical thinking that uses related observations to arrive at a general conclusion is called ________.
- deductive reasoning
- the scientific method
- hypothesis-based science
- inductive reasoning
8. The process of ________ helps to ensure that a scientist’s research is original, significant, logical, and thorough.
- publication
- public speaking
- peer review
- the scientific method
9. A person notices that her houseplants that are regularly exposed to music seem to grow more quickly than those in rooms with no music. As a result, she determines that plants grow better when exposed to music. This example most closely resembles which type of reasoning?
- inductive reasoning
- deductive reasoning
- neither, because no hypothesis was made
- both inductive and deductive reasoning
- organ
- organelle
- cell
- macromolecule
- are not made of cells
- lack cell nuclei
- do not contain DNA or RNA
- cannot reproduce
- prokaryotic cells
- eukaryotic cells
- living organisms
- bacteria
- family
- community
- population
- ecosystem
- organelle, tissue, biosphere, ecosystem, population
- organ, organism, tissue, organelle, molecule
- organism, community, biosphere, molecule, tissue, organ
- biosphere, ecosystem, community, population, organism
- at the base
- within the branches
- at the nodes
- at the branch tips