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Multiple Choice
Which group of organisms is best described as multicellular heterotrophs that lack a cell wall?
A
Plants
B
Fungi
C
Most bacteria
D
Animals
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Verified step by step guidance
1
Step 1: Understand the key terms in the question. 'Multicellular' means composed of many cells, 'heterotrophs' are organisms that obtain their food by consuming other organisms, and 'lack a cell wall' means their cells do not have a rigid outer layer.
Step 2: Analyze each group of organisms based on these characteristics. Plants are multicellular and have cell walls made of cellulose, and they are autotrophs (they produce their own food via photosynthesis).
Step 3: Fungi are also multicellular heterotrophs, but they have cell walls made of chitin, so they do not lack a cell wall.
Step 4: Most bacteria are unicellular, and they have cell walls made of peptidoglycan, so they do not fit the description of multicellular organisms without cell walls.
Step 5: Animals are multicellular heterotrophs and their cells lack cell walls, which matches all the criteria given in the question.