Answer:The extent of variety in the genetic information in the population of offspring.
Explanation:C is correct
Answer:
D the train
Explanation:
The train is safe very fast and was the first built
Answer small and large intestines
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.