The name Canis Lupis is an example of
A.) A Phylogeny
B.) One Clade
C.) A Domain and Kingdom
D.) Binomial Nomenclature
Ans: D.) Binomial Nomenclature
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In a mammal that you are studying, blood sodium levels are decreasing sharply. To correct this problem, which hormone might you try to administer?
A. cortisol B. aldosterone C. estrogen D. antidiuretic hormone E. testosterone
Cytotoxic T cells have the ability to
A. produce platelets. B. increase erythrocyte production. C. produce antibodies. D. stimulate thrombin. E. destroy pathogens.
The brains of Alzheimer disease patients display characteristic lesions called senile plaques formed by the accumulation of a protein fragment called amyloid beta-protein. How are the plaques believed to influence the progression of the disease?
1.Amyloid beta-protein accumulates inside cells, disrupting cell structure and function. 2.The plaques are present in brains of both normal elders and AD patients and differences between these groups in their number and rate of development are insignificant. 3.The plaques cause the degeneration and death of specific neurons, particularly in the limbic system. 4.The plaques cause the random degeneration and death of neurons throughout the brain.
If a cell reverses the process of beta-oxidation, which of the following molecules will it make?
A) glycerol B) amino acids C) fatty acids D) nucleotides E) starch