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Eighth Grade (Grade 8) Biology Questions

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Grade 8 Food Chains and Webs
What is a model that shows ALL the feeding relationships in an ecosystem?
  1. habitat
  2. food web
  3. food chain
  4. biosphere
Grade 8 Human Reproduction
What provides protection for the embryo during development?
  1. umbilical cord
  2. scrotum
  3. amniotic sac
  4. placenta
Grade 8 Microbiology
Which thing is the smallest in size?
  1. bacterium
  2. red blood cell
  3. virus
  4. lymphocyte
Grade 8 Cell Structure and Function
The                 produces energy in the cell.
  1. mitochondrion
  2. nucleus
  3. vacuole
Grade 8 Cell Structure and Function
What is the basic unit of structure and function in all living things?
  1. cell
  2. organism
  3. atom
  4. plasma
Grade 8 Nervous and Endocrine Systems
The beating of the heart is a(n)                 response.
  1. learned
  2. controlled
  3. involuntary
  4. voluntary
Grade 8 Communities, Populations, and Ecosystems
Which series lists the levels of organization in an ecosystem from the smallest unit to the largest?
  1. population, organism, community, ecosystem
  2. organism, population, ecosystem, community
  3. organism, community, population, ecosystem
  4. organism, population, community, ecosystem
Grade 8 Microbiology
Which statement is true about a virus?
  1. They are nonliving.
  2. They do not have a nucleus or organelles.
  3. They do not have a cell membrane.
  4. All of the above
Grade 8 Circulatory and Immune Systems
What do red blood cells not do?
  1. carry oxygen
  2. fight germs
  3. take carbon dioxide or waste away
Grade 8 Biochemical Pathways
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
Which chemical process happens in cells to release energy?
  1. respiration
  2. photosynthesis
  3. breathing
  4. exercise
Grade 8 Cell Structure and Function
Both plant and animals cells have a cell membrane.
  1. True
  2. False
Grade 8 Biochemical Pathways
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 Cell Structure and Function
Which cell part protects and provides shape for a plant cell?
  1. nucleus
  2. mitochondrion
  3. vacuole
  4. cell wall
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