The spherical bacteria of the species $Neisseria$ $gonorrhoeae$ are responsible for which sexually transmitted disease in humans?

Characters transmitted from parents to offspring are present in

Why do we need to adopt contraceptive measures?

$(a)$ Trace the path of sperms from where they are produced in the human body to the exterior.
$(b)$ Write the functions of secretions of the prostate gland and seminal vesicles in humans.

$A$ feature of reproduction that is common to $Amoeba$,$Spirogyra$ and $Yeast$ is that

In asexual reproduction,two offsprings having the same genetic material and the same body features are called ......