Which of the following organisms would be considered the largest in terms of physical size?

• A. Bacteria
• B. Elephant
• C. Mouse
• D. Ant

Answer: (B)

Verified step by step guidance

1. Step 1: Understand the question. The problem is asking which organism is the largest in terms of physical size among the given options: Bacteria, Elephant, Mouse, and Ant.
2. Step 2: Recall the general physical sizes of the organisms. Bacteria are microscopic, typically ranging from 0.2 to 2 micrometers in size. Ants are small insects, usually a few millimeters in length. Mice are small mammals, generally around 6 to 10 centimeters in body length. Elephants are large mammals, with adult elephants reaching several meters in height and weighing several tons.
3. Step 3: Compare the physical sizes of the organisms. Based on the size ranges, bacteria are the smallest, followed by ants, then mice, and finally elephants as the largest.
4. Step 4: Confirm the answer by considering the context of physical size. Elephants are significantly larger than the other organisms listed, both in height and weight.
5. Step 5: Conclude that the correct answer is Elephant, as it is the largest organism in terms of physical size among the options provided.