2 Which of the following is an example of an organ that functions in two different organ systems? A Liver that destroys toxic materials and produces bile for digestion B Heart that pumps blood that contains oxygen C Skin that prevents bacteria and parasites from entering the body D Brain that receives and sends messages

## Step 1<br />The question asks for an organ that functions in two different organ systems. An organ is a group of tissues in a living organism that have been adapted to perform a specific function.<br /><br />## Step 2<br />Option A: The liver is an organ that functions in two different organ systems. It is part of the digestive system because it produces bile, which aids in digestion. It is also part of the excretory system because it destroys toxic materials.<br /><br />## Step 3<br />Option B: The heart is an organ that functions in the circulatory system. It pumps blood that contains oxygen, but it does not function in two different organ systems.<br /><br />## Step 4<br />Option C: The skin is an organ that functions in the integumentary system. It prevents bacteria and parasites from entering the body, but it does not function in two different organ systems.<br /><br />## Step 5<br />Option D: The brain is an organ that functions in the nervous system. It receives and sends messages, but it does not function in two different organ systems.