The photograph shows an organism that is theorized to have been the first to inhabit earth. the organism is photosynthetic and single-celled or colonial. the organism depicted is a
a) pterophyte
b) spermatophyte
c) cyanobacteria
d) viroid particle

The correct answer would be option C.

Cyanobacteria are the photosynthetic bacteria which synthesize their food with the help of chlorophyll and sunlight.

These are considered as the first inhabitant of the earth. They introduced oxygen in the early atmosphere as a result of photosynthesis.

It is believed that they underwent endosymbiosis to give rise to eukaryotic cells.

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)]

genetic variation will increase because of a new habitat and food source.

explanation: