Difference between: External fertilisation and Internal fertilisation.

Following table summarises the differences between self-fertilisation and cross-fertilisation. Pick out the wrong difference.

Difference between:Fertilisation and Parthenogenesis.

write note Fertilisation

in vitro and in vivo fertilisation.

What is in vitro fertilisation?

Match the column I with column II. {:("Column I", "Column II"),("External fertilisation", "(i) Earthworm"),("Internal fertilisation ", "(ii)Cockroach"),("Bisexual", "(iii) Frogs and Fishes"),("Unisexual", "(iv) Birds and mammals"):}

Match column I with column II and select the correct option from the gives codes. {:(A."Cartilaginous fishes",(i)"Usually external fertilisation"),(B."Bony fishes",(ii)"Internal fertilisation"),(,(iii)"Mostly oviparous"),(,(iv)"Mostly viviparous"),(,(v)"Direct development"):}