How the milk weed is adapted to defend from herbivores?

Choose the correct alternative. Cardiac glycosides are developed by milk weed/tobacco plant to defend from grazers.

How elephant is adapted to live in tropical rainforests?

How is yak adapted to live in cold regions ?

How much of the net primary productivity of a terrestrail ecosystem is eaten and digested by herbivores?

How are camels are adapted to live in desert?

Which weedicides are used to remove weeds from the crops?

How is deer adapted to live in grass lands ?