All of the following are excretory (waste) products of animals, except
Which one of the following is not a Major Abiotic Factors?
___________ is the set of all possible combinations of the two inputs that yield the same maximum possible level of output.
Biofortification is a ________________ .
Which among the following has the maximum life span
In stems, the protoxylem lies towards the centre and the metaxylem lies towards the periphery of the organ. This type of primary xylem is called _____________.
In the biosphere living beings are inter-related and interdependent on each other for survival. This life supporting system is known as the __________.
Thermal electricity is generated by using which of these ?
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