Question

Read the conversation between two plant organisms X and Y, which

live together for mutual benefit and survival:-
X: ‘‘Thank you dear friend for providing me with water and minerals.’’
Y: ‘‘Don’t thank me. You also help me out by preparing and supplying food.’’
X: ‘‘That’s why we are best friends and are able to live happily together !’’
i) Identify organisms X and Y, What are they collectively called ?
ii) Name the special relationship between X and Y.
iii) Mention another example where a similar relationship is exhibited.

Answer 1

i) X is a tree that produces glucose by the process of photosynthesis whilst Y is a fungi that grows on it

together they are called symbionts

a symbiont is an organism that is very closley associated with another usally larger organism (host)

ii) symbiotic relationship: the interaction of symbiont species and a host species

there are two types of symbiont

1)ectosymbionts : live outside their host cells

2)endosymbionts : live outside of their host's cell

ii)There are 6 symbiotic relationships one example is parasitism which has a negative effect on the host but a positive effect on the symbiont an example of parasitism include lice and fleas

ps sorry bout the extra info