[B] Both (i) and (iii) Biodegradable wastes are organic in origin whereas non-biodegradable wastes are plastics, metals etc. Enter the food chain as non-biodegradable waste and grow biologically as we move up the food chain.
[B] Both (i) and (iii)
Biodegradable wastes are organic in origin whereas non-biodegradable wastes are plastics, metals etc. Enter the food chain as non-biodegradable waste and grow biologically as we move up the food chain.
This is because of a neural signal given by the maternal endometrium to its hypothalamus in presence of a zygote to sustain the gonadotropin (LH) secretion, so as to maintain the corpus luteum as long as the embryo remains there. In the absence of a zygote, therefore, the corpus luteum can not be maRead more
This is because of a neural signal given by the maternal endometrium to its hypothalamus in presence of a zygote to sustain the gonadotropin (LH) secretion, so as to maintain the corpus luteum as long as the embryo
remains there. In the absence of a zygote, therefore, the corpus luteum can not be maintained longer.
The uterine environment is not congenial for the survival of the gamete. If, directly transferred to the uterus they will undergo degeneration or could be phagocytosed and hence viable zygote would not be formed.
The uterine environment is not congenial for the survival of the gamete. If, directly transferred to the uterus they will undergo degeneration or could be phagocytosed and hence viable zygote would not be formed.
Which of the following statements are incorrect?
[B] Both (i) and (iii) Biodegradable wastes are organic in origin whereas non-biodegradable wastes are plastics, metals etc. Enter the food chain as non-biodegradable waste and grow biologically as we move up the food chain.
[B] Both (i) and (iii)
See lessBiodegradable wastes are organic in origin whereas non-biodegradable wastes are plastics, metals etc. Enter the food chain as non-biodegradable waste and grow biologically as we move up the food chain.
At the time of sunrise and sunset
[A] blue colour scattered and red colour reaches our eye
[A] blue colour scattered and red colour reaches our eye
See lessIt was observed that at places where DDT was used to control mosquitoes and other pests, the eggs of eagles would become fragile and break and the eagle almost became extinct. After DDT was banned by lawmakers, eagle population has recovered. The possible reason for this is:
[A] DDT is non-biodegradable and hence found in largest concentration in tertiary consumers.
[A] DDT is non-biodegradable and hence found in largest concentration in tertiary consumers.
See lessCorpus luteum in pregnancy has a long life. However, if fertilisation does not take place it remains active only for 10-12 days . Why?
This is because of a neural signal given by the maternal endometrium to its hypothalamus in presence of a zygote to sustain the gonadotropin (LH) secretion, so as to maintain the corpus luteum as long as the embryo remains there. In the absence of a zygote, therefore, the corpus luteum can not be maRead more
This is because of a neural signal given by the maternal endometrium to its hypothalamus in presence of a zygote to sustain the gonadotropin (LH) secretion, so as to maintain the corpus luteum as long as the embryo
See lessremains there. In the absence of a zygote, therefore, the corpus luteum can not be maintained longer.
In GIFT, gametes are transferred to the fallopian tube. Can gametes be transferred to the uterus to achieve the same result? Explain.
The uterine environment is not congenial for the survival of the gamete. If, directly transferred to the uterus they will undergo degeneration or could be phagocytosed and hence viable zygote would not be formed.
The uterine environment is not congenial for the survival of the gamete. If, directly transferred to the uterus they will undergo degeneration or could be phagocytosed and hence viable zygote would not be formed.
See less