7 Review Questions
4 . The first forms of life on Earth were ________.
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- plants
- microorganisms
- birds
- dinosaurs
5 . A suggested and testable explanation for an event is called a ________.
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- hypothesis
- variable
- theory
- control
6 . Which of the following sciences is not considered a natural science?
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- biology
- astronomy
- physics
- computer science
7 . The type of logical thinking that uses related observations to arrive at a general conclusion is called ________.
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- 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.
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- 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?
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- inductive reasoning
- deductive reasoning
- neither, because no hypothesis was made
- both inductive and deductive reasoning
10 . The smallest unit of biological structure that meets the functional requirements of “living” is the ________.
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- organ
- organelle
- cell
- macromolecule
11 . Viruses are not considered living because they ________.
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- are not made of cells
- lack cell nuclei
- do not contain DNA or RNA
- cannot reproduce
12 . The presence of a membrane-enclosed nucleus is a characteristic of ________.
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- prokaryotic cells
- eukaryotic cells
- living organisms
- bacteria
13 . A group of individuals of the same species living in the same area is called a(n) ________.
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- family
- community
- population
- ecosystem
14 . Which of the following sequences represents the hierarchy of biological organization from the most inclusive to the least complex level?
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- organelle, tissue, biosphere, ecosystem, population
- organ, organism, tissue, organelle, molecule
- organism, community, biosphere, molecule, tissue, organ
- biosphere, ecosystem, community, population, organism
15 . Where in a phylogenetic tree would you expect to find the organism that had evolved most recently?
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- at the base
- within the branches
- at the nodes
- at the branch tips