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Eighth Grade (Grade 8) Biology Questions

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Grade 8 DNA, RNA, and Genetics
Who is known as "The Father of Genetics"?
  1. Reginald Punnett
  2. Charles Darwin
  3. Alfred Wegener
  4. Gregor Mendel
Grade 8 Human Reproduction
The joining of a sperm and an egg is differentiation.
  1. True
  2. False
Grade 8 Respiration, Digestion, and Excretion
Three organs of the digestive system that food does not pass through are the
  1. stomach, esophagus, and small intestine.
  2. liver, gall bladder, and pancreas.
  3. large intestine, small intestine, and stomach.
Grade 8 DNA, RNA, and Genetics
The composition of an organism on the genetic level is its
  1. genotype.
  2. phenotype.
  3. adaptation.
  4. evolution.
Grade 8 Macromolecules
Which type of chemicals help to digest food?
  1. minerals
  2. enzymes
  3. cells
  4. lipids
Grade 8 Circulatory and Immune Systems
Pulmonary veins carry blood from the lungs and are the only veins in your body that
  1. get rid of deoxygenated blood.
  2. carry liquid wastes.
  3. carry iron in them.
  4. carry oxygenated blood.
Grade 8 Communities, Populations, and Ecosystems
What refers to a community of organisms, along with their nonliving, abiotic environment?
  1. ecosystem
  2. geology
  3. model
  4. astronomy
Grade 8 Biochemical Pathways
What is broken down during cellular respiration to release energy?
  1. Glucose
  2. ADP
  3. Water
  4. Carbon dioxide
Grade 8 Evolution
Who developed the theory of evolution?
  1. Reginald Punnett
  2. Charles Darwin
  3. Alfred Wegener
  4. Gregor Mendel
Grade 8 Biochemical Pathways
Which of the following is TRUE statement about cellular respiration?
  1. Cellular respiration converts energy directly from the Sun into energy stored in chemical bonds.
  2. Cellular respiration cannot occur without sunlight.
  3. Cellular respiration occurs in plant cells and in animal cells.
  4. Cellular respiration is not a cycle with photosynthesis.
Grade 8 Cell Structure and Function
The                 serves as the cell's control.
  1. cytoplasm
  2. cell membrane
  3. mitochondrion
  4. nucleus
Grade 8 Biotic and Abiotic
Predators can be classified as what type of influence?
  1. living
  2. nonliving
  3. genetic
  4. inorganic
Grade 8 Human Reproduction
The fluid that contains sperm is testosterone.
  1. True
  2. False
Grade 8 Anatomical Organization
                are tiny units of life that make up the body's tissues.
  1. Nuclei
  2. Cells
  3. Cell membranes
  4. Atoms
Grade 8 Nervous and Endocrine Systems
The body system that gathers and interprets information from internal and external environments and responds to that information is the
  1. nervous system.
  2. skeletal system.
  3. digestive system.
  4. circulatory system.
Grade 8 Skin, Skeleton, and Muscles
In what way do tendons and ligaments differ?
  1. Ligaments connect muscles to bones, and tendons connect bones to bones
  2. Ligaments connect muscles to muscles, and tendons connect muscles to bones
  3. Ligaments connect bones to bones, and tendons connect muscles to bones
  4. Ligaments connect tendons to tendons, and tendons connect ligaments to bones
Grade 8 Macromolecules
What type of organic substances are fats?
  1. nucleic acids
  2. carbon
  3. proteins
  4. lipids
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