Question

If '+' sign is assigned to beneficial interaction, '-' sign to detrimental and '0' sign to neutral interaction, then the population interaction represented by '+' '-' refers to

Parasitism
Mutualism
Amensalism
Commensalism

Answer 1

Heya,

Parasitism + , -
Mutualism + , +
Amensalism 0, -
Commensalism +, 0 

So, the answer to this question is (1) option i.e. Parasitism.

Hope this helps....:)

Answer 2

HLO MATE HERE IS UR ANSWER.

⭐. Mutualism : Both the species get benefited (+,+) with each other.

⭐. Competition : Both the species get harmed (-,-).

⭐. commensalism : One gets benefited (+) and the other one is neither benefited nor harmed (0).

⭐. Amensalism : One species is harmed (-) and the other one is unaffected (0).

⭐. parasitism and predation : In both of thede only one species befits (+) and the other one us detrimental (-).