Read Slides 11-13. Which of the following statements accurately describes a similarity between the circulatory systems of humans and frogs?

Question

a
Both humans and frogs have four-chambered hearts.
b
Both humans and frogs have closed circulatory systems with pulmonary and systemic circulation.
c
Both humans and frogs have open circulatory systems.

Answer 1

The statement that accurately describes a similarity between the circulatory systems of humans and frogs is:

b Both humans and frogs have closed circulatory systems with pulmonary and systemic circulation.

Humans have a four-chambered heart, while frogs have a three-chambered heart, so statement a is incorrect. Statement c is also incorrect because both humans and frogs have closed circulatory systems, not open.