Food webs are complex because
...Food webs are complex because
the number of producers are large
many animals feed directly on producers
they include primary, secondary and tertiary consumers
some animals form part of several food chains
Correct answer is A
No explanation has been provided for this answer.
The process which reduces the nitrogen content of the soil is ...
which of these elements in plants is required in small quantities only ...
The progressive loss of energy at each level in a food chain leads to ...
Which of the following statements is correct of hormones? Hormones are ...
The farming practice in which an exhausted farm land is left for a number of years before culti...
Which of the following groups of factors is completely abiotic? ...