STD 12 - 12. ecosystem — Biology STD 12 Science — Question

Hot spots are places of:

Secondary nucleus in the middle of an embryo sac of angiosperms is

Giant mouse has been produced through:

Heterogametic male condition does not occur in?

Point out the odd one:

A bird enters the mouth of crocodile and feeds on parasitic leeches. The bird gets food and crocodile get rid of blood sucking leeches. Both the partners can live independently. Such an association is:

Any cell, tissue or an organ removed from a plant for the purpose of culturing is called as:

Assertion : Animals adopt different strategies to survive in hostile environment.

Reason : Praying mantis is green in colour which merges with plant foliage.

Endosperm of gymnosperm is