can an organism be both a primary and secondary consumer
Consumer (food chain) Within an ecological food chain, Consumers are categorized into primary consumers, secondary consumers, and the tertiary consumers.[2] Primary consumers are herbivores, feeding on plants. Secondary consumers, on the other hand, are carnivores, and prey on other animals. Omnivores, who feed on both plants and animals, can also be considered a secondary consumer. Tertiary consumers, sometimes also known as apex predators, are usually at the top of food chains, capable of feeding on secondary consumers and primary consumers. Tertiary consumers can be either fully carnivorous or omnivorous. Humans are one such example of a tertiary consumer.
Inferior good In economics, an inferior good is a good whose demand decreases when consumer income rises (or demand rises when consumer income decreases),[1] unlike normal goods, for which the opposite is observed.[2] Normal goods are those for which demand rises as consumer income rises. [3] This would be the opposite of a superior good, one that is often associated with wealth and the wealthy, whereas an inferior good is associated with lower socio-economic groups.