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Eighth Grade (Grade 8) Biology Questions

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Grade 8 :: Biochemistry 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 :: Evolution by sharrik
Different kinds of plants living in the same area must compete for water. Which plant represents "survival of the fittest"?
  1. the plant with the largest leaves
  2. a plant with a compact root system
  3. the plant with the largest root system
  4. a plant with needles instead of leaves
Grade 8 :: Human Reproduction by Robyn_Black
The release of an egg from an ovary is known as:
  1. ovulation
  2. fertalization
  3. menstruation
  4. afterbirth
Grade 8 :: Cell Structure and Function by clonekid
Serves as the cell's control center
  1. cytoplasm
  2. cell membrane
  3. mitochondria
  4. nucleus
Grade 8 :: Ecology by jsnell
The vast frozen plains located within the Arctic Circle.
  1. tundra
  2. Boreal Forest
  3. timberline
  4. permafrost
Grade 8 :: Evolution by sharrik
Grade 8 :: Ecology by eacurr
Grade 8 :: Cell Structure and Function by clonekid
Controls the movement of materials into and out of the cell
  1. cell membrane
  2. nucleus
  3. cytoplasm
  4. mitochondria
Grade 8 :: Cell Structure and Function by clonekid
System of tubes and canals used to transport materials throughout the cell
  1. vacuoles
  2. chloroplast
  3. endoplasmic reticulum
  4. nucleus
Grade 8 :: Evolution by sharrik
Speciation takes place when variation occurs with
  1. geographical isolation
  2. death of an organism
  3. changes due to accidents
Grade 8 :: Anatomical Organization by Tunisia
Grade 8 :: Nervous and Endocrine Systems by LBeth
Grade 8 :: Circulatory and Immune Systems by LBeth
Grade 8 :: Microbiology by sharrik
What do viruses require to make copies of themselves?
  1. host cell
  2. light
  3. water
  4. xerox machine
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