The concept that simple organic molecules could form spontaneously from simpler raw materials was
first proposed by:
a. Miller and Urey.
b. Charles Darwin.
c. Thomas Malthus.
d. Watson and Crick.
e. Oparin and Haldane.
E
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Which of the following is the cornea, and what is its function?
a. A—allows light into the eye b. B—fluid that protects tissue c. C—has light-absorbing pigments d. D—receives sensory input
The grouping "conidial fungi," also known as "imperfect fungi" or deuteromycetes, is a convenience
grouping for fungi that are not classified in other groups, because the conidial fungi
a. have no known sexual phase. b. are unicellular. c. have a dikaryotic phase in their life cycle. d. have a haploid phase in their life cycle. e. lack a cell wall.
Passive immunity provided to newborns through the placenta belong to the _____ class of immunoglobulins.
What will be an ideal response?
Why is NaHCO3 considered a base in the following reaction? NaHCO3 + HCl ® NaCl + CO2 + H2O
A. It contains hydrogen ions. B. It is a hydrogen ion acceptor. C. It donates hydroxide ions in this reaction. D. It results in the formation of CO2.