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Description
Made for a project

"Two examples of Bactos organisms showing some of the variety.

The one on the left (Clam Shell Bactos) displays megaloop usage.
Megaloops being structures derived from many photoloops fused together to form a single unit. Often the megaloop has a stalk portion where the photoloops are tightly held together for increased structural strength, and a portion where it opens and widens for photosynthesis.
It also displays clam shell gills.
Clam shell gills house the air gills, the organs used for extracting H2S from the atmosphere. The origins of the outer protective layer is a specialized photoloop. The gills have two entrances, an inheritance from the photoloop ancestry, as well as a means of increasing airflow. The inside of the gill is a hairy complex of meshes stretched from wall to wall, kept moist to maintain gas absorption. The outer cover helps to prevent dessication.

The example to the right is of a different lineage (Mantle Bactos), along its ridge are the tiny microloops that give it a feathered appearance. The microloops are individual photoloops.
Rather than developing a cover for their gill using derived photoloops the Mantle Bactos has drawn the organs up into their stalk for protection. This way as the plant grows larger (in the stalk) the gills gain more volume along with the increased support and area for other body parts, as opposed to needing to grow entire new gill systems.
Being at the center of the body also grants the gills greater protection from damage."

Description
Made for a project

"Two examples of Bactos organisms showing some of the variety.

The one on the left (Clam Shell Bactos) displays megaloop usage.
Megaloops being structures derived from many photoloops fused together to form a single unit. Often the megaloop has a stalk portion where the photoloops are tightly held together for increased structural strength, and a portion where it opens and widens for photosynthesis.
It also displays clam shell gills.
Clam shell gills house the air gills, the organs used for extracting H2S from the atmosphere. The origins of the outer protective layer is a specialized photoloop. The gills have two entrances, an inheritance from the photoloop ancestry, as well as a means of increasing airflow. The inside of the gill is a hairy complex of meshes stretched from wall to wall, kept moist to maintain gas absorption. The outer cover helps to prevent dessication.

The example to the right is of a different lineage (Mantle Bactos), along its ridge are the tiny microloops that give it a feathered appearance. The microloops are individual photoloops.
Rather than developing a cover for their gill using derived photoloops the Mantle Bactos has drawn the organs up into their stalk for protection. This way as the plant grows larger (in the stalk) the gills gain more volume along with the increased support and area for other body parts, as opposed to needing to grow entire new gill systems.
Being at the center of the body also grants the gills greater protection from damage."