Fermentation is carried out regularly, and not only during oxygen emergencies, by what organisms?
a) most animals
b) many fungi and bacteria
c) plants, during the night time
d) all organisms, all of the time

the transfer for conduction is the heat transfering from the liquid to the spoon

the transfer for convection is the heat rising from the liquid to the air

the transfer for radiation is the heat going through the sides of the cup and to the air

at least that is what i would do

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).