Draw an enlarged view of a Villus.

Draw a labelled diagram of a section of an enlarged view of microsporangium of an angiosperm.

(a ) Draw a labelled L.S. view of an albuminous 'seed'· (b) How are seeds advantageous to flowering plants ?

Name the kind of mirror used to obtain: a. a real and enlarged image b. a virtual and enlarged image c. a virtual and diminished image d. a real and diminished image

Name a mirror that can give an errect and enlarged image of an object.

(a) Draw a sectional view of a seminiferous tubule of human. Label sertoli cell, spermatagonia and leydig cell on it and write their functions. (b) Explain the role of pituitary and sex hormones in the process of sapermatogenesis.

Draw a magnified view of the root hair, and describe how it helps in the absorption of water from the soil ?

Draw a labelled diagram to show inter-relationship of four accessory ducts in a human male reproductive system. OR Draw a sectional view of the human ovary showing the different stages of developing follicles, corpus luteum and ovulation.

(a) Draw the sectional view of a seminiferous tubule of human. Label its any six parts. (b) Name the pituitary hormones involved in the process of spermatogenesis State their functions.

(a) Draw a sectional view of human ovary. Label the following parts : (i) Primary follicle. (ii) Secondary oocyte. (iii) Graafian follicle. (iv) Corpus luteum. (b) Name the hormones influencing follicular development of corpus luteum.

How is 'oogenesis' markedly different from 'spermatogenesis' with respect to the growth till puberty in the humans? b) Draw a sectional view of human ovary and label the difference follicular states, ovum and Corplus luteium.