Hurry i have a big test. ༼ つ ಥ_ಥ ༽つ
the digestive system includes groups of tissues that absorb nutrients from food that has already been broken down. what is the best way to classify this group of tissues?
a an organ
b an organ system
c an organelle
d an individual organism

A. an organ

Explanation:

The definition of an organ is a group of tissue that is set to do specific functions. In this example the group of tissues help in the digestive system. It's not talking about the system as a whole but as that specific group of tissue.

The bold is the key focus that you should try to remember! I hope I answered your question!

a tetrad is the foursome during meiosis made by two homologous chromosomes that have each already replicated into a pair of sister chromatids.