A base can be defined as
A. a hydroxide ion acceptor.
B. an attraction between a positive ion and a negative ion.
C. a substance that gives up hydrogen ions when dissolved in water.
D. a substance that gives up hydroxide groups in a solution.
D. a substance that gives up hydroxide groups in a solution.
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The fluid mosaic model explains the function and components of which of the following?
a. Plasma membrane b. Endoplasmic reticulum c. Cytoskeleton d. Endomembrane system
Archaeopteryx is a transitional form between
a. birds and mammals. b. mammals and reptiles. c. birds and reptiles. d. fish and amphibians. e. amphibians and reptiles.
A cuboidal shaped cell with six sides is 1mm x 1mm x 1mm. What is the volume and the surface area of the cell?
A. 3mm3 : 1mm2 B. 3mm3 : 3mm2 C. 1mm3 : 6mm2 D. 1mm3 : 3mm2
Biologic evolution is a scientific theory, which means it is just an educated guess with no evidence to support it.
a. true b. false