Question

which animal is often used to study human body systems because it is similar to humans? (2 points) sheep pig cow rabbit

Explanation:

Pigs are often used to study human body systems. Their organs (like heart, kidneys) are similar in size and function to human organs. For example, pig heart valves have been used in human heart surgeries. Their digestive and circulatory systems also have similarities to humans, making them valuable in medical research.

Answer:

Pig