Sexual Reproduction, Development and Growth in Humans and Animals

Question 1:State the structures of the male reproductive system. Answer:Testis, seminiferous tubules, epididymis, vas deferens, seminal vesicle, prostate gland, penis Question 2:Explain the functions of the seminal vesicle and the scrotum. Answer:The function of seminal vesicle is to secret nutritious fluid for sperms. Scrotum functions to hold and protect the testis. Question 3:State the structures … Read more

Question 1:Diagram below shows a longitudinal section of the reproductive parts of a flower during fertilization.(a) On the Diagram, name the structures J, K, L and M.(b)(i) In the space below, draw a section through the ovule, showing all the cells in M.(b)(ii) What is the significance of having two K structures in the fertilization?(c) … Read more

Question 1:Diagram shows two types of twins.(a)(i) Name the type of twins M. [1 mark](ii) Explain how twins M are formed. [2 marks](b)(i) Name the structure W. [1 mark](ii) State two functions of structure W. [2 marks](c) State two differences between twins K and twins M. [2 marks](d) Twins K are brought up by two … Read more

Question 1:(a) Diagram 1 shows part of a female reproductive system.The development of zygote occurs in this system.Diagram 1Based on the Diagram 1, describe the development of the zygote after fertilization until implantation. [4 marks](b) Diagram 2 shows a method to overcome infertility in a married woman with a blockage in both of her Fallopian … Read more