does non symbiotic mutualism come under heterotrophic mode of nutrition?

Solution:
Non symbiotic mutualism does not come under heterotrophic mode of nutrition
All animals and non-photosynthetic plants are classified as heterotrophs since they are unable to prepare food. So these organisms resort to other various forms of nutrition. Hence, from an ecological perspective, heterotrophs are always secondary or tertiary consumers in a food chain.

Humans and other vertebrates rely on converting organic, solid or liquid food into energy. Other organisms such as fungi rely on converting dead organic matter into nutrients. In essence, heterotrophs break down complex food into its readily usable constituents.

Types of Heterotrophic nutrition:

In nature, organisms exhibit various types of heterotrophic nutrition. They are as follows:

• Holozoic Nutrition
• Saprophytic Nutrition
• Parasitic Nutrition