what is the term for organisms that obtain nutrient from dead organisms through decomposition
What will be an ideal response?
saprobic
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Among these contraception methods, the highest risk of accidental pregnancy accompanies _____
A) the use of a diaphragm B) the use of a condom C) the practice of coitus interruptus D) a verified vasectomy E) the practice of the "rhythm method"
A cellular junction is: (1) the space between two cells; (2) the point of contact between two cells; (3) the point of contact between a cell and the extracellular matrix
A. Statements (1) and (2) are correct. B. Statements (2) and (3) are correct. C. Statements (1) and (3) are correct. D. All the statements are correct.
What event enabled the rats to become
resistant to warfarin?
a. mutation of a gene associated with the recycling of vitamin A b. mutation of a gene associated with vitamin K c. mutation of a gene associated with blood clotting d. mutation of a gene associated with blood production e. more than one of these enabled rats to become resistant to warfarin
In a circulatory system with double circulation, __________.
a. blood is pumped at two separate locations as it circulates through the body b. blood is pumped twice by the same heart in order to complete a cycle of picking up oxygen and delivering it to the tissues c. there is a countercurrent exchange in the gills d. hemolymph circulates both through a pumping blood vessel and through body sinuses e. there are always two atria per heart ventricle