The symbols , -, and 0 are to be used to show the results of interactions between individuals and groups of individuals. The symbol denotes a positive interaction, - denotes a negative interaction, and 0 denotes where individuals are not affected by interacting. The first symbol refers to the first organism mentioned. What interactions exist between cellulose-digesting organisms in the gut of a termite and the termite?

A) +/+

B) +/-

C) 0/0

D) -/-

A) +/+

Explanation:

The form of interaction that exist between cellulose-digesting organisms in the gut of a termite and the termite itself is a +/+ interaction.

This is because the interaction of both organisms is beneficial to each of them. While the cellulose-digesting organisms are able to get their shelter in the gut of the termite, the termite benefits from the presence of these cellulose-digesting organisms by getting their cellulose-containing food materials digested by them.

Hence, it is a mutually beneficial interaction.

Option A is the correct option.

increase soil erosion                                             reduce soil erosion

cattle grazing                                                         hydroseeding

deforestation                                                         contour plowing

                                                                                planting vegetation

plant roots basically hold the top soil

together and stop soil erosion because

in such situation top soil is not removed

during flood but cattle grazing causes

soil erosion because cattle consume the

grasses and herbs and top soil is exposed.

same situation occurs because of

deforestation, the trees and plants are cut

down to expose top soil which causes soil

erosion

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds