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Ninth Grade (Grade 9) Science Questions

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Grade 9 Evolution
When did Lamarck publish his ideas?
  1. 1809, the year Darwin was born
  2. 1835, the year Darwin was born
  3. 1901, the year Darwin was born
  4. 1745, the year Darwin was born
Grade 9 Macromolecules
Grade 9 Nervous and Endocrine Systems
Grade 9 The Moon
If a total solar eclipse occurs, when must a partial lunar eclipse occur?
  1. one month before or after the solar eclipse
  2. two weeks before or after the solar eclipse
  3. one day before or after the solar eclipse
  4. there is no relationship between the timing of solar and lunar eclipses
Grade 9 Reactions
A chemical reaction is likely to occur spontaneously if it
  1. has more reactants than products.
  2. has more products than reactants.
  3. releases energy.
  4. absorbs energy.
Grade 9 Oceanography and Hydrology
A single high and a single low tide daily.
  1. Diurnal tides
  2. Neap tides
  3. Spring tides
  4. Tidal range
Grade 9 Anatomical Organization
Grade 9 Anatomy and Physiology
The internal conditions of organisms are maintained by means of
  1. homeostasis.
  2. chemistry.
  3. metabolism.
  4. organization.
Grade 9 Periodic Table and Elements
Grade 9 DNA, RNA, and Genetics
What is the function of tRNA?
  1. to match up with mRNA, carrying an amino acid
  2. to copy the DNA that goes from the nucleus to the ribosome
  3. to serve as the site where a polypeptide chain is made from amino acids
  4. none of these
Grade 9 Tectonics
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