Answer:
B. Adult flies have emerged from the shells
Explanation:
A pupa is the life stage of some insects undergoing transformation between immature and mature stages. The pupal stage is found only in insects that undergo a complete metamorphosis, with four life stages: egg, larva, pupa, and imagoa, therefore, an empty pupae means the insect has emerged from the pupae by splitting the pupal case and leaving it empty
I would probably say C. economic class
Einthovens's Triangle is an imaginary lead formation for EKG. Developed by William Eithoven, the leads are placed on wrists of both arms and the lower left leg. This forms a equilateral "triangle" for which to measure Electrocardiogram readings.
Micturition
Micturition, part of the urinary process, is where the urine flows from the ureter to the urethra for excretion. This process is done because of the smooth muscles that are present in the vessels of the urethra from the bladder.
