How many eggs are produced by one ovary every month in a human female?

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.

Vegetative propagation refers to the formation of new plants from:

Which bacterium causes the disease syphilis?

What is the advantage of reproducing through spores?

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