Answer AND Explanation:
The seminal vesicle produces an alkaline fluid which contains nutrients for the spermatozoa. Near this point is situated the prostate gland whose secretion is alkaline to neutralise the vaginal fluids. It also activates the sperms. The cowper's' gland secretes alkaline fluid that neutralises the acidity along the urethra. All the fluids combine with the spermatozoa from the vasa deferentia to form semen.
Only 1- the experiment can not show a cause and effect relationship if there are more than one factors contributing to the outcome.
7: symbiotic relationship
8: mutualism
9: commensalism
the first blank is point counts, and the second is transect sampling.
