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.
The answer is d. :) you got this!
The tricuspid valve shuts. This prevents blood from flowing backward into the right atrium while the ventricle contracts. So, your answer will be the Tricuslid Valve. Hope I helped!
The environment includes abiotic (nonliving) and biotic (living) factors. An ecosystem consists of all the biotic and abiotic factors in an area and their interactions
