Cuscuta plant produce..…..to inserts itself into the host.
a) spines
b) trichomes
c) root hairs
d) haustoria
The roots of …….plants have small
nodules which contain nitrogen fixing bacteria
a) pulses
b) fabicace plants
c) leguminous plants
d) none of these
Example of mutualism can be observed in…….
a) protists
b) termites
c) both a and b
d) none of these
Bacteria live in intestine which produce……….
a) proteins
b) cells
c) vitamin K
d) vitamin B
Example of commensalism?
a) epiphytes
b) barnacles
c) both a and b
d) none of these
Balance in the ecosystem and human impact:
