Which of the following best describes the number of cells found in organisms belonging to the kingdom Plantae?

• A. They are multicellular.
• B. They can only exist as single cells.
• C. They are unicellular.
• D. They are acellular.

Answer: (A)

Verified step by step guidance

1. Understand the question: The problem is asking about the number of cells found in organisms belonging to the kingdom Plantae. This requires knowledge of the characteristics of Plantae organisms.
2. Recall the definition of multicellular organisms: Multicellular organisms are composed of more than one cell, with cells specialized for different functions. Plants fall under this category.
3. Eliminate incorrect options: 'They can only exist as single cells' and 'They are unicellular' are incorrect because plants are not single-celled organisms. Similarly, 'They are acellular' is incorrect because plants are composed of cells.
4. Confirm the correct answer: Organisms in the kingdom Plantae are multicellular, meaning they consist of multiple cells working together to perform various functions.
5. Conclude: The best description of the number of cells in organisms belonging to the kingdom Plantae is 'They are multicellular.'