Fill in the blanks: 
1. The Opening of the stomach in duodenum is regulated by ....a....
2. Opening of the common hcpato-pancreatic duct is guarded by a structure called ...b….
3. The structure which prevents the back flow of faecol matter is called ...c...
4. A muscular structure that regulates the opening of oesophagus into stomach is called ..d..

Fill in the blanks. a. The light band contains actin and is called I band. b. The thick filaments in the .....2 band are held together in the middle of this band by a thin fibrous membrane called .3. line. c. In the centre of each ‘1‘ band is an elastic fibre called ...4... line which bisects it, d. The central portion of the thick filament which is not overlapped by thin filaments is called the ...'5'

Select the option which correctly fill up the blanks in all statements - Statements : A. Humans reproduce ......... (asexually/sexually) B. Humans are ........(oviparous, viviparous, ovoviviparous) C. Fertilisation is ...... in humans (external/internal) D. Male and female gametes are ...... (diploid/haploid) E. Zygote is .... (diploid/haploid) F. The process of release of ovum from a mature follicle is called ..... G Ovulation is induced by a hormone called ...... H. The fusion of male and female gametes is called ..... I. Zygote divides fo form ....... which is implanted in uterus. J. The structure which provides vascular connection between fetus and uterus is called .......