Question

1. what is the role of an organ in the body?

to store waste
to perform a specific function using different types of tissue
to group together organ systems
to produce new cells

Explanation:

An organ is made up of different tissues. Its main role is to carry out a particular function in the body. For example, the heart (an organ) has muscle tissue, connective tissue etc. and its function is to pump blood. Storing waste is a very limited - scope function that not all organs do (e.g., bladder stores urine but many organs like lungs, heart do not). Organ systems are made up of organs, not the other way around. Producing new cells is more of a function of tissues in some organs (like bone marrow in bones which is a tissue - producing new blood cells) but not the overall role of an organ.

Answer:

To perform a specific function using different types of tissue