Science Bowl Sample Questions ›› Biology

Science Bowl Sample Questions : Biology

51. Which of the following fins is NOT found on fish:
    1. pectoral
    2. lateral
    3. dorsal
    4. pelvic

    Answer: B

52. In mammals, the embryos have a physiological connection to the mothers body during development. This is an example of:
    1. viviparity
    2. ovoviviparity
    3. oviparity
    4. parity

    Answer: A

53. The following pathway, CO2 + H2O + energy yields (CH2O)n + O2, represents which of the following:
    1. cellular respiration
    2. photosynthesis
    3. an irreversible reaction
    4. glycolysis

    Answer: B

54. George Gamow made a contribution to biology by correctly interpreting the:
    1. X-ray crystallographic structure of DNA
    2. existence of reverse transcriptase
    3. minimum number of letters in the code for amino acids
    4. existence of oncogenes

    Answer: C

55. Which of the following accounts for the largest decline in death rate in the USA between the years 1900 and 1990:
    1. accidents
    2. cancer
    3. cardiovascular disease
    4. infectious disease

    Answer: D

56. Physicians give patients immuno-suppressing drugs after an organ transplant to prevent:
    1. infection
    2. a graft verses host response
    3. rejection of the transplant
    4. viral infections

    Answer: C

57. Which of the following does NOT directly function in the cytoskeleton:
    1. microtubules
    2. microfilaments
    3. spectrin
    4. actin

    Answer: C

58. Stems grow longer by creating new cells at their tips, in a region known as the:
    1. terminal division section
    2. terminal mitotic
    3. shoot apical meristem
    4. apical terminus

    Answer: C

59. In a typical cell, cytokinesis overlaps with:
    1. S phase
    2. metaphase
    3. anaphase
    4. telophase

    Answer: D

60. Francesco Redi is known for an experiment that refuted which of the following theories:
    1. the theory of spontaneous generation
    2. phlogiston theory
    3. the theory of bad humors
    4. the theory that disease was caused by astrological events

    Answer: A