[Q]: [Thatis,40percentormoreofthespermareabnormallyshaped.Thespermmayhaveshortorcurledtails,doubleheads,orheadthataretoolarge,toosmall,orbadlyshaped.]
[A]: [That is, 40 percent or more of the sperm are abnormally shaped. The sperm may have short or curled tails, double heads, or head that are too large, too small, or badly shaped.]
[Q]: [Thereareneithermuchinvestigationof,whatwecouldcallthenaturalbasefortheexistenceofthoseBalsaRafts:Technologyemployedontherafts,toolsandmethodsatdisposalfortheconstructionofraftsnortherawmaterialpresentinthearea-atthattime.]
[A]: [There are neither much investigation of, what we could call the natural base for the existence of those Balsa Rafts: Technology employed on the rafts, tools and methods at disposal for the construction of rafts nor the raw material present in the area - at that time.]
[Q]: [Inspecialcoursescanbetaughttocontroltheboat.]
[A]:
[In special courses can be taught to control the boat.]