Which one of the following is the best definition of gangrene?
A. Digestion of dead tissue by saprophytic bacteria.
B. Digestion of living tissue by saprophytic bacteria.
C. Gas production in dead tissue.
D. Necrosis of tissue caused by bacterial toxins.
E. Necrosis of tissue caused by ischaemia.

Which of these substances does not protect against invaders in the nonspecific immune response? a. saliva b. mucus c. tears d. urine

How is the carbon cycle related to global warming ?

To store strawberries in sugar syrup, lucy placed them in a jar and covered them with sugar but did not add any water. do you think syrup will be formed? justify. a. no. since water is not added, there cannot be any syrup formation. b. no. the higher concentration of sugar on the outside will cause the water from the sugar to diffuse in the strawberry cells causing them to swell without formation of any syrup. c. yes. the higher concentration of sugar on the outside will cause the water from the strawberry to diffuse out resulting in syrup formation. d. yes. the sugar will melt over time and form the syrup.