Pond Water

  • Question: How many types of protozoans are there?
  • Answer: There are 4 types of protozoans - Mastigophora, Ciliophora, Sarcodina, and Sporazoans.
  • Question: True or False: Amoeba always keep the same shape
  • Answer: False - amoebas have no definite shape
  • Question: What is the name of the hair-like projections that Paramecium use to move?
  • Answer: A paramecium is covered with cilia, which help it move with a synchronous motion

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Atoms

  • Question: What is a group of atoms, bonded together, called?
  • Answer: Atoms bond together to form molecules
  • Question: True or False: Atoms are mostly empty space
  • Answer: True - An atom contains more that 99 percent of empty space
  • Question: What type of bond do atoms form when they share electrons?
  • Answer: The sharing of electrons is a covalent bond

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DNA

  • Question: What are the segments of DNA that carry genetic information called?
  • Answer: Genetic information on DNA strands are carried by genes
  • Question: Who was the monk who discovered that traits are controlled by genes?
  • Answer: Gregor Mendel discovered genes in 1865
  • Question: How many chromosomes do humans have?
  • Answer: Humans have 46 chromosomes

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Cells

  • Question: What three structures do plant cells have that animal cells lack?
  • Answer: Plant cells have plastids, a cell wall, and vacuoles
  • Question: What structure can be found in the middle of a cell and controls it's activity, like a "brain"?
  • Answer: The nucleus has been called the "brain" of a cell
  • Question: What's the name of the molecule in red blood cells that carries oxygen through the body?
  • Answer: Hemoglobin carries blood to all cells in the body

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