STD 11 - 4. Animal kingdom — NEET STD 11 Science — Question

Which of the following statements are correct ?
(i) Each seminiferous tubule is lined on its inside by two types of cells called male germ cells and Sertoli cells.
(ii) Sertoli cells undergo meiotic divisions and provide nutrition to the germ cells.
(iii) The regions outside the seminiferous tubules called interstitial spaces, contain interstitial cells for secretion of inhibin.
(iv) Leydig cells synthesise and secrete testicular hormones called androgens.
(v) The male sex accessory ducts include epididymis and vas deferens.
(vi) The seminiferous tubules of the testis open into the vasa efferentia through rete testis.

Which of the following is used as 'clotbuster'. For removing clots from blood vessels of patient who have undergone myocardial infartion

Pneumotaxic centre can moderate the functions of respiratory rhythm centre by

The normal blood flowing through renal arteries in human being is about

Select incorrect sentence from below.

Reptiles are different from amphibians in

Widal test is used for susceptibility of

The excretory material of bony fish is