Long a
a.
Name the biotic and abiotic components of ecosystem.
b. Why are green plants called producers?
C.
Define:
i) producer
v) parasitism
ii) ecosystem
iii) decomposer
vi) symbiosis
iv
vii) commensalism vi
d. If the number of tertiary consumers is increased more than
causes the imbalance of the ecosystem. Explain.
e.
Mention any four abiotic factors that affect the environme
one of them in short.
f. Explain the concept of food chain in brief with the help of
tom brioflex