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Bio 11 Quiz One Review Notes

Quiz one: Review

 

Topic One:

 

Scientific method

 

  • A scientific inquiry always begins with an observation.
  • In an observation you can look for both quantitative and qualitative factors.
  • Now you proposes a hypothesis to explain your observations.
  • You may infer, looking at your observations, a possible cause and effect relationship.

 

Points about a hypothesis

 

  • It must be testable
  • It must be a tentative explaination of observed phenomena
  • As a formal hypothesis, it should include the word “if” for the independent variable and “then” for the dependent variable.
  • A hypothesis can be supported by testing that hypothesis

 

The process of the scientific method includes:

  • Observation
  • Hypothesis
  • Experiment
  • Theory
  • Law

 

All experiments are subject to change and can have experimental error.

 

In a controlled experiment, there is no experimental variable.

 

Within the scientific community experiments are given to scientific journals for peer review.

 

We will need to be aware of four theories

  • Evolutionary theory
  • Gene theory
  • Abiogenesis
  • Cell Theory

 

Classification

The study of how organisms are classified is called taxonomy.

  • A binomial name includes both the genus and the species.
  • A binomial name begins with the genus and then the species, much like your last name then your first.
  • In order from many organisms to specific species is :
  • Kingdom: Example Animal Kingdom
  • Phylum
  • Class
  • Order
  • Genus
  • Species: note that species are defined by the fact that they reproduce with each other.
  • Levels of organization
  • Cells can be classified as:
  • Prokaryote: an organism that has no nucleus, no organelles, no cytoplasmic streaming .

 

If we start off with a cell being the lowest level of organization, then levels of complexity and interaction are:

Cell to tissue

Tissue to organ

Organ to system

 

Now we are looking at specific species.

 

A number of individual species is a population

A number of population with other populations is a community.

If we consider both living (biotic) and nonliving (abiotic) factors we are now considering an ecosystem.

Several ecosystems together is referred to as a biome.

posted by Marc Bernard Carmichael in Biology Eleven,Biology Eleven Lesson Outline,Biology Eleven Notes and have No Comments

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