Symbiosis Considerations (Section 1)

Ectosymbioses

Symbiotic relationships where the partner organisms live on the external surface of one another. (Yeti Crab)

Endosymbionts

Organisms that live inside another organism's cells.

Bacteriocyte

The cell that holds bacteria and can regulate them within it.

Symbiosome

The cell that individually swallows a single microbe.

Nutritional symbiosis

Type of symbiosis where partners exchange nutrients, such as carbon, nitrogen, amino acids, and vitamins.

Killer Symbiosis

A symbiotic relationship involving nematodes that can kill their host or other organisms.

Defensive symbiosis

Interactions that provide protection against predation, fouling, herbivory, and environmental stress.

General effects on fitness

Impacts on an organism's reproduction, survival, and growth due to symbiotic relationships.

Specific Mode of Interaction

Different types of symbiotic interactions, such as nutritional, defensive, and developmental.

Developmental symbiosis

A type of symbiosis that influences the growth stages of certain organisms, such as ants and their final molt.