Answer:
C. Burying dead/religious beliefs
Ectotherm can survive with a low calorie diet
A muscle fiber will respond to a stimulus when that stimulus reaches the threshold level. These local classified potentials which are mainly related with external stimuli extent the axon preliminary segment and construct up to they manage to extent the threshold value. The bigger the stimulus the larger the depolarization or try to reach threshold.
The third option, "other fungi growth".
The Binomial Naming System.