Biology Quiz with Answers for Competitive Exams

The uterus is an inverted pear-shaped muscular part of the female reproductive system. It is positioned between the bladder and the rectum. Its function is to nourish and encloses a fertilized egg until the offspring, is ready to be delivered. It is within the uterus that the offspring develops during gestation. Once the egg has left the ovary it undergoes fertilization and implants itself in the lining of the uterus. The key function of the uterus is to provide nourishment to the developing fetus prior to birth. Thus, the baby is born as a result of rhythmic contraction of muscles in uterus.

Intracytoplasmic sperm injection (ICSI) is an infertility treatment. It involves injecting live sperm into a person's eggs in a laboratory. This procedure can create an embryo (fertilized egg). ICSI is a form of in vitro fertilization (IVF).

In the fallopian tube, the sperm meets the egg that was released from the ovary during ovulation.

The epicranial aponeurosis (aponeurosis epicranialis, galea aponeurotica) is an aponeurosis (a tough layer of dense fibrous tissue). It covers the upper part of the skull in humans and many other animals. Muscles of the head, face, and neck.

Bone formation markers are measured in blood. The two markers generally used are called PINP and CTX and these are the ones recommended in international expert guidance. These are both blood tests. Some hospitals still use NTX which is a urine marker.

Each egg cell or sperm contains 23 chromosome whereas a normal cell has 46 chromosomes.

The development of the child inside the mother's body takes approximately eleven months.

Prolactin is necessary for the secretion of milk by the cells of the alveoli. The level of prolactin in the blood increases markedly during pregnancy, and stimulates the growth and development of the mammary tissue, in preparation for the production of milk (19).