Which kingdom includes multicellular eukaryotes that have cell walls and are autotrophic?

• A. Plantae
• B. Protista
• C. Animalia
• D. Fungi

Answer: (A)

Verified step by step guidance

1. Step 1: Begin by understanding the key characteristics of the organisms described in the problem. Multicellular eukaryotes are organisms made up of multiple cells with a nucleus and membrane-bound organelles.
2. Step 2: Focus on the traits mentioned: having cell walls and being autotrophic. Autotrophic organisms can produce their own food, typically through photosynthesis, and cell walls provide structural support.
3. Step 3: Analyze the kingdoms provided as options: Plantae, Protista, Animalia, and Fungi. Compare their defining characteristics to the traits described in the problem.
4. Step 4: Recall that the Plantae kingdom includes multicellular eukaryotes that have cell walls made of cellulose and are autotrophic, using chloroplasts for photosynthesis.
5. Step 5: Confirm that the other kingdoms do not match all the traits. For example, Animalia lacks cell walls and is heterotrophic, Fungi have cell walls but are heterotrophic, and Protista includes diverse organisms, some of which are unicellular or lack cell walls.