Answer: 3 Calories of heat will be required by silver to raise the temperature to 1°C.
Explanation: Specific heat is defined as the heat required to raise the temperature by 1°C for 1 gram of substance.
Mathematically,

where,
q = heat required = ? Cal
m = Mass of the substance = 50 g
c = Specific heat of the substance = 
= Change in the temperature = 1°C
Putting values in above equation, we get:

Maggots used in wound care are bred in a sterile environment and are free from bacterial contamination. ... It is not possible for the maggots to turn into flies while in the wound. The maggot will not reproduce or multiply within the wound, as only adult flies lay eggs.
The two sides of a nerve cell membrane have unequally distributed ions ( Na+ and K+). Sodium is inside, while potassium is outside. Carriers actively transport them. This active transport mechanism is called Sodium-Potassium Pump. Without stimulus, sodium channels are closed while some of the potassium channels are open.
Stimulus (depolarization) will cause the sodium channels to briefly open and the positively-charged ion diffuses into the nerve cell. The membrane potential becomes positive. The potassium channels open and positively-charged potassium diffuse out. With respect to the outside, the inside will become less positive again.
That bridge is called "pilus" provided by F+ bacteria.