Microorganisms require small quantities of this nutrient for enzyme function and maintenance of protein structure.
A) Water
B) Element
C) Trace element
D) Growth factors
E) Macronutrient
C) Trace element
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B cell receptors differ from T cell receptors in that
A. B cell receptor immunoglobulins can be secreted as antibodies, whereas T cell receptors are never secreted. B. B cell receptors are immunoglobulin in nature, whereas T cell receptors are not immunoglobulin molecules. C. B cell receptors are comprised of four polypeptides, whereas T cell receptors have only two polypeptides in their quaternary structure. D. B cell receptors have two antigen binding sites, whereas T cell receptors have only one antigen binding site. E. All of the choices represent differences between B cell and T cell receptors.
In which of the following species would the number of males LEAST affect the rate of population
growth?
a. Northern elephant seals b. Trumpeter swans c. Canadian geese d. European rabbits e. Norwegian rats
A map unit is based on a recombination frequency of:
1.1% 2.5% 3.10% 4.25% 5.50%
Compare and contrast the processes of photosynthesis and aerobic respiration. How are they similar
and how do they differ? What will be an ideal response?