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Eighth Grade (Grade 8) Biology Questions

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Grade 8 :: Circulatory and Immune Systems by sullz9999999999
What do red blood cells not do?
  1. Find germs.
  2. Eat foreign things in your body.
  3. Kill infections.
  4. Carry nutrients.
Grade 8 :: Biochemical Pathways by rebmidwife
The process where cells obtain energy from sugar molecules is called:
  1. biotic
  2. nitrogen cycle
  3. respiration
  4. food chains
Grade 8 :: Food Chains and Webs by sharrik
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 :: Circulatory and Immune Systems by sullz9999999999
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 :: Cell Structure and Function by LBeth
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 :: Food Chains and Webs by sharrik
Grade 8 :: Biochemical Pathways by Occulus
What are the products of photosynthesis?
  1. water (H2O) and glucose (C6H12O6)
  2. glucose (C6H12O6) and carbon dioxide (CO2)
  3. carbon dioxide (CO2) and water (H2O)
  4. glucose (C6H12O6) and oxygen (O2)
Grade 8 :: Biochemical Pathways by Occulus
What are the reactants of cellular respiration?
  1. water (H2O) and glucose (C6H12O6)
  2. glucose (C6H12O6) and carbon dioxide (CO2)
  3. carbon dioxide (CO2) and water (H2O)
  4. glucose (C6H12O6) and oxygen (O2)
Grade 8 :: Biochemical Pathways by Occulus
What process produces carbon dioxide?
  1. photosynthesis
  2. replication
  3. mutation
  4. respiration
Grade 8 :: Biomes by MariaYovino
Which is an example of a aquatic ecosystem?
  1. tundra
  2. ocean
  3. grassland
  4. rain forest
Grade 8 :: Food Chains and Webs by Occulus
What is an organism that cannot make its own food?
  1. heterotroph
  2. chemotroph
  3. producer
  4. autotroph
Grade 8 :: Macromolecules by Vic_Dickenson
What type of organic substances are fats?
  1. nucleic acid
  2. carbon
  3. protein
  4. lipids
Grade 8 :: Food Chains and Webs by sharrik
What is the primary purpose of a food web?
  1. diagram of who eats what
  2. diagram of the apex predator in a chain
  3. depict the interconnectedness of organisms
  4. show the movement of energy in ecosystem
Grade 8 :: Communities, Populations, and Ecosystems by Occulus
The role a species plays in its ecosystem:
  1. natural selection
  2. adaptation
  3. niche
Grade 8 :: Food Chains and Webs by Occulus
Circle the letter of EACH sentence that is true about an energy pyramid.
  1. The greatest amount of energy is available at the producer level.
  2. At each higher level of the pyramid, there is more energy avabilable.
  3. About half the energy at one level is transferred to the next.
  4. Most food webs have only three or four feeding levels.
Grade 8 :: Circulatory and Immune Systems by sullz9999999999
Where is the heart located?
  1. Left side of the chest.
  2. Right side of the chest.
  3. In your bladder.
  4. In your stomach.
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