MCAS Biology Practice - Question List

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96. Emphysema is a severe respiratory system disease. The disease causes damage that directly prevents the transfer of oxygen to the bloodstream.Which part of the respiratory system does emphysema damage?
  1. alveoli
  2. bronchi
  3. larynx
  4. trachea
97. Which of the following provides the most conclusive evidence that organisms of two different species share a common ancestor?
  1. They live in the same ecosystem.
  2. They reproduce at the same time.
  3. They have similar DNA sequences.
  4. They have similar body movements.
98. In a certain variety of chicken, some offspring have a feather pattern that is black-and-white checkered. Chickens with this checkered feather pattern result from the cross of a black chicken with a white chicken.Which of the following types of inheritance is most likely responsible for the checkered feather pattern?
  1. codominant
  2. dominant
  3. polygenic
  4. sex-linked
99. Ovalbumin is a protein found in eggs. Which of the following best describes the molecular structure of ovalbumin?
  1. a group of six carbon atoms joined in a ring
  2. a chain of amino acids folded and twisted into a molecule
  3. a set of three fatty acids attached to a molecule of glycerol
  4. a sequence of nitrogenous bases attached to a sugar-phosphate backbone
100. Blue jays and kingbirds are both classified in the order Passeriformes. In the current taxonomic system, this means that the two types of birds must also belong to the same
  1. family.
  2. genus.
  3. phylum.
  4. species.

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