Some species of ant "farm" aphids by protecting them from predators. in return, the ants feed on a sugar-rich liquid (called honeydew) secreted by the aphids. the ecological relationship between the ants and the aphids is:
a. mutualism. b. parasitism. c. competition. d. none of the answer options is correct.

a. mutualism

Explanation:

This relationship is called mutualism because both species benefit from the ecological relationship established, on the one hand the aphids are protected from predators and the ants feed thanks to aphids. This is a type of intraspecific mutualism because it is between two different species

atp is used for energy.

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]