List - I | List – II | ||
A. | Parturition | i. | Several antibodies for new-born babies |
B. | Placenta | ii. | Collection of ovum after ovulation |
C. | Colostrum | iii. | Foetal ejection reflex |
D. | Fimbriae | iv. | Secretion of the hormone hCG |
A. Parturition: Parturition refers to childbirth, which is initiated by the foetal ejection reflex. A-III
B. Placenta: The placenta is an organ that develops during pregnancy and is responsible for secreting the hormone human chorionic gonadotropin (hCG). B-IV
C. Colostrum: Colostrum, the first milk produced by mammals after giving birth, is rich in antibodies that provide passive immunity to newborns. C-I
D. Fimbriae: Finger-like projections at the end of the fallopian tubes that help collect the ovum (egg) after ovulation. D-II
A bob of heavy mass \(m\) is suspended by a light string of length \(l\). The bob is given a horizontal velocity \(v_0\) as shown in figure. If the string gets slack at some point P making an angle \( \theta \) from the horizontal, the ratio of the speed \(v\) of the bob at point P to its initial speed \(v_0\) is :