Answer :

Final answer:

A deer is a primary consumer because it is an herbivore that feeds on plants, which are producers.

Explanation:

The correct answer is D) Deer. In an ecosystem, primary consumers are herbivores that feed directly on producers such as plants or phytoplankton. The options given can be categorized as follows: A) Lion is a carnivore and usually functions as a secondary or tertiary consumer because it eats other animals, B) Sea gull is typically a secondary consumer that may also scavenge, C) Fish can vary depending on their diet, but many are secondary consumers, and D) Deer, which are herbivores that feed on plants, making them primary consumers.

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Thank you for reading the article Which of the following is a primary consumer A Lion B Sea gull C Fish D Deer. We hope the information provided is useful and helps you understand this topic better. Feel free to explore more helpful content on our website!

Rewritten by : Jeany