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Biology Questions - All Grades

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Grade 10 Food Chains and Webs
Grade 12 Human Reproduction
What system plays a vital role in the existence of the human species?
  1. cardiovascular system
  2. respiratory system
  3. digestive system
  4. reproductive system
Grade 10 Cell Structure and Function
Grade 11 DNA, RNA, and Genetics
The passing of traits from parent to offspring is
  1. genetics.
  2. heredity.
  3. traits.
  4. Punnett squares.
Grade 10 Macromolecules
Carbohydrates are made up of the three elements of
  1. nitrogen, oxygen, and hydrogen.
  2. carbon, hydrogen, and oxygen.
  3. sulfur, hydrogen, and oxygen.
  4. nitrogen, phosphorus, and oxygen.
Grade 10 Cell Structure and Function
A group of similar cells carrying out a job is a(n)
  1. tissue.
  2. organ.
  3. organ system.
  4. organism.
Grade 10 Cell Structure and Function
Which statement accurately describes osmosis?
  1. The direction of the water flow is opposite of the gradient for the solute diffusion.
  2. The direction of the water flow is the same as the gradient for the solute diffusion.
  3. The movement of particles of solute is from high concentration to low concentration when water cannot cross the cell membrane.
  4. The movement of particles across a cell membrane uses energy derived from ATP.
Grade 9 Biochemical Pathways
Grade 10 Cell Structure and Function
The structures that synthesize proteins in cells are the
  1. ribosomes.
  2. Golgi apparatus.
  3. lysosomes.
  4. vacuoles.
Grade 9 Biotic and Abiotic
Which situation is a biotic factor operating within an ecosystem?
  1. the kind of climate in a given region
  2. carnivores that eat other animals
  3. the concentration of hydrogen gas in the air
  4. the rate of water flow in a body of water
Grade 9 Biochemical Pathways
Which are typically products of cellular respiration?
  1. carbon dioxide and water
  2. oxygen and carbon dioxide
  3. water and glucose
  4. glucose and oxygen
Grade 9 Food Chains and Webs
Which organisms can be found at the first, or lowest, trophic level?
  1. herbivores
  2. carnivores
  3. heterotrophs
  4. autotrophs
Grade 9 Biochemical Pathways
Which are typically products of photosynthesis?
  1. oxygen and carbon dioxide
  2. glucose and oxygen
  3. carbon dioxide and water
  4. water and glucose
Grade 9 Biochemical Pathways
Which correctly describes the purpose of photosynthesis?
  1. to release energy by decomposing glucose
  2. to store energy in the form of carbon dioxide
  3. to use sunlight energy to make sugars
  4. to create water for hydration
Grade 10 Cell Structure and Function
One difference between eukaryotes and prokaryotes is that
  1. prokaryotes are surrounded by a cell membrane and eukaryotes are not.
  2. prokaryotes have a nucleus and eukaryotes do not.
  3. eukaryotes have DNA and prokaryotes do not.
  4. eukaryotes have membrane-bound organelles and prokaryotes do not.
Grade 10 DNA, RNA, and Genetics
The molecule shown in the diagram shows what kind of structure?
DNA
  1. multi-strand
  2. ladder
  3. double helix
  4. double vertex
Grade 10 Cell Structure and Function
Grade 10 Evolution
Evolution is the
  1. process of maintaining homeostasis.
  2. process that results in the increase of living material in an organism.
  3. process of accumulating adaptations gradually over time.
  4. none of the above
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