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Eighth Grade (Grade 8) Biology Questions

You can create printable tests and worksheets from these Grade 8 Biology questions! Select one or more questions using the checkboxes above each question. Then click the add selected questions to a test button before moving to another page.

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Grade 8 Cell Structure and Function
Grade 8 Biochemical Pathways
What is the process where cells obtain energy from sugar molecules?
  1. biotic
  2. nitrogen cycle
  3. respiration
  4. food chains
Grade 8 Circulatory and Immune Systems
Grade 8 Communities, Populations, and Ecosystems
Grade 8 Circulatory and Immune Systems
What do red blood cells not do?
  1. Carry oxygen.
  2. Carry food and nutrients.
  3. Take carbon dioxide or waste away.
  4. Fight germs.
Grade 8 Food Chains and Webs
Which best describes the purpose of a food chain?
  1. shows what organisms eat which foods
  2. shows the importance of the sun's energy
  3. predator/prey relationships between organisms
  4. shows transfer of energy between trophic levels
Grade 8 Cell Structure and Function
Which of the following best describes the function of "C" in the cell shown below?
Animal Cell
  1. protein builders
  2. supports cell shape
  3. controls cell activities
  4. releases energy from food
Grade 8 Skin, Skeleton, and Muscles
The adult body is made up of how many bones?
  1. 350
  2. 206
  3. 296
  4. 256
  5. All the above
  6. None of the above
Grade 8 Biotic and Abiotic
Circle the letter of EACH choice that is a biotic factor in a prairie dog ecosystem.
  1. Grass and other plants that the prairie dog eats
  2. Hawks, ferrets, and other animals that hunt prairie dogs
  3. The soil that provides the prairie dog with a home.
  4. Worms, fungi, and bacteria that also live in the soil.
Grade 8 Food Chains and Webs
Grade 8 Cell Structure and Function
Which best identifies the images in order: A, B, C, D?
Eukaryotic DNA Without Text Labels
  1. cell, chromosome, nucleus, DNA
  2. DNA, nucleus, chromosome, cell
  3. cell, nucleus, chromosome, DNA
  4. DNA, chromosome, nucleus, cell
Grade 8 Food Chains and Webs
Grade 8 Biomes
Ponds and lakes represent what type of biome?
  1. flowing-water
  2. wetlands
  3. standing-water
  4. intertidal zones
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