Question
Oestrus cycle is very important to know the right time
for AI . In which phase of oestrus cycle implantation of embryo takes Place?Solution
(1) pro-oestrus ( follicular phase) – Graafian follicles develop in the ovary and secrete oestrogens; (2) oestrus ( heat) – ovulation normally occurs, the female is ready to mate and becomes sexually attractive to the male; (3) metoestrus ( luteal phase) – corpus luteum develops from ruptured follicle; (4) dioestrus – progesterone secreted by corpus luteum prepares uterus for implantation.
When electric current is passed through a wire, the amount of heat produced in a wire depends upon _____.
I. Length
II. Thickness
A gas is compressed at constant temperature. Which of the following will decrease?
Shadows are formed when a/an _______ object comes in the path of light.
Which type of glass is used for making chemical apparatus like beakers, flasks etc.?
A body of mass 6 kg accelerates from 6 m/s to 18 m/s in 3 seconds due to the application of a force on it. Calculate the magnitude of this force (in N).
What is the focal length of a plane mirror?
What happens when sodium reacts with water?
A spring of spring constant 500 N/m is compressed by 5 cm. The potential energy stored is:
Which of the following is a renewable energy source?
Which of the following is used to initiate nuclear fission?
