The scientist who demonstrated that the Earth moves around the sun was ________
Fill in the blank(s) with correct word
Copernicus
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Cichlid fish from Lake Apoyeque, Nicaragua, have begun to develop distinct morphologies that allow them to eat different foods within the same lake. If these fish never fully speciate but continue to produce fit hybrids over a long period of time, what will be the result?
a. reinforcement
b. fusion
c. stability
d. inviability
The circular muscles that control the movement of materials from one digestive system structure to the next are called ________.
Fill in the blank(s) with the appropriate word(s).
What do hydrolases catalyze?
a. splitting water b. oxidation-reduction reactions c. splitting a molecule using water d. the transfer of a phosphate group e. reactions in which double bonds are formed
Consider a culture medium on which only gram-positive organisms such as Staphylococcus aureus colonies can grow due to an elevated NaCl level. A yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the pH as a result and changing the color of a pH indicator chemical. This type of medium would be referred to as a(n)
A) selective medium. B) differential medium. C) enrichment culture. D) selective and differential medium. E) differential and enrichment culture.