Distinguishing Plant and Animal Tissues
This question requires identifying the key differences between plant and animal tissues. Let's examine the provided options to find the most accurate distinction.
Analyzing Tissue Characteristics
- Option 1: Plant tissues have dead supportive cells, while animal tissues are mostly living. This statement accurately reflects a fundamental difference. Plants utilize specialized, often dead, cells (like those in xylem and sclerenchyma) for structural rigidity and support. Animal bodies, conversely, are primarily composed of living cells, including those forming supportive structures like bone and cartilage.
- Option 2: Both plant and animal tissues have equal growth throughout the body. This is inaccurate. Plant growth is localized to meristematic regions, and animal growth patterns are complex and regulated, not uniformly equal.
- Option 3: Plant tissues have no supportive structure, while animals lack living tissues. This is incorrect. Plants have significant supportive structures (e.g., cellulose, lignin), and animals are fundamentally made of living tissues.
- Option 4: Animal tissues are mostly dead, while plant tissues are mostly living. This is largely incorrect. Animal tissues are predominantly living, and while plants do have living tissues (like parenchyma), Option 1 better captures the specific role of dead cells in plant support.
Key Distinction
The primary correct distinction lies in the composition and function of supportive tissues. Option 1 correctly identifies that plants often rely on dead cells for support, whereas animal tissues are characterized by being mostly living.