Grafting is which type of reproduction method?

In human males,the testes lie in the scrotum,because it helps in the

Which bacterium causes the disease syphilis?

Why does the lining of the uterus become thick and spongy every month?

Some plants do not produce seeds. For such plants,parts like roots,stem,and leaves are used to develop into new plants.
$(a)$ Identify the process.
$(b)$ Which type of reproduction is it—sexual or asexual? Answer with reason.
$(c)$ Give any two examples of this process.

Write true or false for the following statement: Menstruation lasts for about ten to fifteen days.