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Below are the objectives for Grade 8.  Click on the link  for students or  for teachers for any objective to see the resources available or to add your own resource.

HomeScience - Grade 8

 

Standard 2: Life

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Benchmark

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B.   Describe the characteristics of an organism in terms of a combination of inherited traits and recognize reproduction as a characteristic of living organisms essential to the continuation of the species.

1.   Describe that asexual reproduction limits the spread of detrimental characteristics through a species and allows for genetic continuity (e.g., mitosis).

2.   Recognize that in sexual reproduction new combinations of traits are produced which may increase or decrease an organism’s changes for survival (e.g., meiosis).

2.a  Recognize how human actions, within an ecosystem can cause the extinction of species.

 

D.   Explain how extinction of a species occurs when the environment changes and its adaptive characteristics are insufficient to allow survival (as seen in evidence of the fossil record).

3.   Explain how variations in structure, behavior or physiology allow some organisms to enhance their reproductive success and survival in a particular environment.

4.   Explain that diversity of species is developed through gradual processes over many generations (e.g., fossil record).

5.   Analyze how an organism adapted to a particular environment may become extinct if the environment, as shown by the fossil record, changes.

 

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