Answer:

1. Consumer is a person or a group who intends to order, orders, or uses purchased goods, products, or services primarily for personal, social, family, household and similar needs, not directly related to entrepreneurial or business activities.

2. A decomposer is an organism that breaks down organic materials from dead organisms to obtain energy. These organisms are basically living recycling plants.

3. Carnivores, Herbivores, and Omnivores

5. Ecosystem is a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system. These biotic and abiotic components are linked together through nutrient cycles and energy flows.