One of the first set of experiments to refute spontaneous generation was done in 1688 by Francesco Redi. Which of the following statements regarding Francesco Redi's experiments is true?
a. His experiments determined a series of conditions that must be satisfied in determining the causative agent of disease.
b. The results of his experiment demonstrated that living organisms are derived from other living organisms.
c. His experiments demonstrated that oxygen is essential to all life.
d. He determined that material from an infectious agent taken from one person could be used to stimulate immunity in another person.
Answer: b. The results of his experiment demonstrated that living organisms are derived from other living organisms.
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Which element is not considered an essential micronutrient for plants in general, but is required by horsetails and
perhaps some grasses such as wheat?
a. gold b. boron c. silicon d. zinc e. magnesium
The genotype is fixed at the moment of ____________________ and, barring mutation, is unchangingFill in the blank(s) with the appropriate word(s)
Which of the following organelles does the Endosymbiotic Theory suggest evolved from symbiotic relationships between prokaryotic cells?
a) mitochondria b) Golgi bodies c) chloroplasts d) ribosomes
Which of the following statements about insect control by microorganisms is true?
a. The insects develop resistance to the microorganisms. b. The microorganisms are permanent in the environment. c. The microorganisms are specific for the insect pest. d. The microorganisms may cause disease in other animals. e. This technique is just as dangerous as the use of chemical pesticides