Categorize the following ARTs based on their applications in male sterility and female sterility: GIFT, Al.

Categorize the following animals based on the na ture of excretion of nitrogenous waste. Mammals, Bony Fishes , Birds, Aquatic amphibians, Terrestrial amphibians, Insects, Cartilage fishes, Aquatic insects

a) Howthe metallic character varies in the periodic table? b) Categorize the following oxides into acidic, basic, neutral and amphoteric: Al_20_3 , Na_2O , CO_2 , Cl_2O_7 , MgO, CO, As_2O_3 , N_2O

Name the electromagnetic waves used for the following applicatons: For sterilizing surgical instruments.

Tubectomy is a method of female sterilization. How is it surgical procedure helps in female sterility?

Suggest the ART which may be successful in the following conditions. Male partner is unable to inseminate the female or has very low sperm count.

Read the following statements and find out the incorrect statements. a. In majority of organisms, male gamete is motile and female gamete is non-motile (stationary). b. In algae and fungi, both male and female gametes are non-motile. c. In seed plants, pollen grains are the carrier of male gametes and ovule has the egg. d. In dioecious plants, pollination facilitates transfer of pollen grains to the stigma. e. In monoecious animals, since male and female gametes are formed in different individuals, the or ganism must evolve special mechanism for gamete transfer.

Read the following statements carefully and select the appropriate option given below. (i) Bisexual animals that possess both male and female reproductive organs, are hermaphrodites. (ii) In seed plants, pollen grains are the carriers of male gametes and ovule have the egg. (iii) Events in sexual reproduction before the formation of zygote are called post-fertilisation events. (iv) Sexual reproduction involves the formation and fusion of gametes, (v) Animals are categorised into oviparous and viviparous based on whether the development of the zygote takes place outside the body of the female parent or inside.