The placents serves as the site for gaseous exchange between the mother and foetal blood throughout their intra-uterine life. The blood in umbilical cord is exclusively foetal blood and no maternal blood is present as if different blood groups of mother and foetus can mix and cause coagulation. Hence, the correct answer is option "4" - More than one option is incorrect.
Phase of menstrual cycle in human that lasts for 7-8 days is
NextIn the given list how many male accessory ducts are present outside testes? Rete
Arrange the following in the correct sequence. 1. Ejaculatory duct 2. Urethra 3. Vas deferens 4. Epi
MediumArrange the following structures in the correct order through which sperm passes after leaving the s
MediumConsider the following statements. I. Penis is the male copulatory organ. II. Urethra serves as a co
MediumHow many of the following statements are correct? 1. Accessory glands contribute secretions to semin
MediumArrange the following structures in the correct sequence of sperm transport. 1. Epididymis 2. Semini
MediumMatch the following. List I a. Testis b. Epididymis c. Vas deferens d. Urethra List II i. Temporary
Practice Zoology Exams
Full-length mock tests with detailed analytics, rank, and percentile.
Browse Exams