Read the following statements carefully and select the correct statements.
(i) hPL plays a major role in parturition.
(ii) Fetus shows movements first time in the `7^(th)` months of pregenancy.
(iii) Signal for parturition comes from fully developed fetus and placenta.
(iv) Embryo's hearth is formed by the `3^(rd)` month of pregency.

Select the correct statement. (a) hPL plays a major role in parturition (b) Fetus shows movements first time in the 7 t h month of pregnancy (c) Signal for parturition comes from fully development fetus and placenta (d) Embryo's heart is formed by the 2 t h month of pregnancy

Select the correct statement. (a) hPL plays a major role in parturition (b) Fetus shows movements first time in the 7 t h month of pregnancy (c) Signal for parturition comes from fully development fetus and placenta (d) Embryo's heart is formed by the 2 t h month of pregnancy

Read following statements (a-d) and choose the option with only correct statements. a. Parturition occurs due to a complex neuroendocrine mechanism at the end of gestation period. b. The signals for parturition originate from fully developed foetus and placenta which induces mild uterine contraction. c. Foetal ejection reflex triggers release of oxytocin from foetal pituitary. d. Oxytocin reduces uterine contraction under positive feedback control and causes expulsion of placenta followed by foetus known as parturition. a and b b and c c and d a and d

Read the following statements carefully and select the appropriate option given below. (i) The distal end of the filament is attached to the thalamus or the petal of the flower. (ii) The pollen grains represent the male sporophyte. (iii) The microsporangia develop further and become embryo sac. (iv) In over 60 per cent of naked seeded plant, pollen grains are shed at this 2-celled stage. (v) As anthers mature and dehydrate the microspores, dissociate from each other and develop into pollen grains.

Read the following statements carefully and select the incorrect ones. (i) Development of the fertile top-soil takes centuries, but it can be easily removed due to human activites such as over-cultivation, unrestricted grazing, etc. (ii) Waterlogging results in soil salinity. (iii) UV rays are responsible for degradation of ozone shield in atmosphere. (iv) Ozone present in troposphere acts as a shield abosrbing UV radiations coming from the Sun. (v) Global warming can be controlled by increasing the use of fossil fuels.

Read the following statements carefully and select the incorrect ones. (i) Development of the fertile top-soil takes centuries, but it can be easily removed due to human activites such as over-cultivation, unrestricted grazing, etc. (ii) Waterlogging results in soil salinity. (iii) UV rays are responsible for degradation of ozone shield in atmosphere. (iv) Ozone present in troposphere acts as a shield abosrbing UV radiations coming from the Sun. (v) Global warming can be controlled by increasing the use of fossil fuels.

Read the following statements carefully and select the correct ones I.UV rays are essential for the production as well as degradation of ozone gas II.Ozone present in ionosphere acts as a shield absorbing UV radiation coming from the sun III.One fourth of the incoming solar radiation is reflected by the atmospheric gases and clouds and only half of the incoming solar radiation falls on the earth surface heating it of this only a small portion is reflected back

Read the following sentences and select the correct option with all true statements. i. During parturition , oxytocin induces intense contractions in the uterus. ii. After parturition oxytocin stimulates milk ejection. iii . The labour pain of during child-birth is due to oxytocin . iv. oxytocin is secreted from placenta and ovary .

Read the following sentences and select the correct option with all true statements. i. During parturition , oxytocin induces intense contractions in the uterus. ii. After parturition oxytocin stimulates milk ejection. iii . The labour pain of during child-birth is due to oxytocin . iv. oxytocin is secreted from placenta and ovary .

Read the following statements carefully and select the correct ones. () Alfred wallace, a naturalist who worked in Malay Archipelago had also come to similar conclusions as Darwin around the same time. (ii) August Weismann by carefull experimentation demonstrated that life comes only from pre-existing life. (iii) The organs which have the same fundamental structure but are different in functions are called homologous organs. (iv) Rate of appearance of new form is inversely proportional to life spain of organism.