Biology

Read the explanations given below and name the structures:
Example: The tubules which produce sperms.
Answer: Seminiferous tubules
(a) The canal through which the testes descend down into the scrotum just before the birth of a male
baby.
(b) The part of the brain that regulates the peristaltic movement of the alimentary canal.
(c) A structure that collects the soundwaves and conducts them through the external auditory canal.
(d) The point of attachment of two chromatids of a chromosome.
(e) Regulation of the opening and closing of stomata.