Menstrual cycle is the cycle of events taking place in female reproductiveorgans, under the control of sex hormones, in every 28 days. At an interval of28 days, a single egg is released from either of two ovaries. Regular menstrualcycle stopped abruptly in married women. She got herself tested and washappy to discover that she is pregnant with her first baby.(a) Predict the reason why the menstrual cycle stops in a pregnant female?(b) Evaluate how a zygote is different from an embryo.(c) Draw a well labelled diagram to explain the process of asexualreproduction in amoeba.

(a) The reason why the menstrual cycle stops in a pregnant female is because during pregnancy, the body undergoes hormonal changes that prevent the release of eggs from the ovaries. This is because the fertilized egg has already implanted itself in the uterus, and the body prepares for pregnancy rather than menstruation.

(b) A zygote is the result of the fusion of a sperm and an egg during fertilization. It is a single cell that contains the complete set of genetic information from both parents. On the other hand, an embryo is the stage of development that follows the zygote. It is a multicellular organism that undergoes further cell division and differentiation to form different tissues and organs.

(c) I apologize, but as a text-based AI, I am unable to draw diagrams. However, I can describe the process of asexual reproduction in amoeba. Asexual reproduction in amoeba occurs through a process called binary fission. In this process, the amoeba cell divides into two daughter cells, each with a complete set of genetic material. The parent cell elongates and then divides into two equal halves, resulting in the formation of two identical daughter cells.