Scientists divide the ocean into zones based on various factors such as sunlight penetration and distance from the shoreline. Which of the following areas of the ocean has the greatest species diversity?
A) deep sea
B) ocean floor
C) open ocean
D) coastal area
Ans: D) coastal area
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The cytoskeleton and motor proteins are important for which of the following processes?
A. cell motility B. whipping motion of sperm flagella C. movement of amoeba by lamellopodia D. muscle contraction E. All of the choices are correct.
During the cardiac cycle, which of the
following is the correct order of events?
a. atria contract, atria and ventricles relax, ventricles contract b. ventricles contract, atria contract, atria and ventricles relax c. atria and ventricles relax, atria contract, ventricles contract d. ventricles contract, atria and ventricles relax, atria contract e. none of these
Viral proteins can damage host cells by which process?
a. producing endotoxins b. preventing transcription of viral nucleic acids c. increasing the rate of fermentation within the host d. causing a decline in coordination and increased irritability e. overwhelming the host cell with a large number of viruses
A hybrid with two nonidentical alleles (Aa) expresses a phenotype that is between the dominant and recessive forms. This type of inheritance pattern is called _________
Fill in the blank(s) with the appropriate word(s).