A dichotomous key is a tool that allows the user to determine the identity of items in the natural world, such as trees, wildflowers, mammals, reptiles, rocks, and fish. Dichotomous keys always give two choices in each step.
B.To Understand group behavior through observation
Explanation:
Plants do not need respiratory system because roots , stems, leaves of plants exchange gases for respiration separately. ... They don't have lungs to breathe so they don't need a respiratory system. They have stomata.
How is mitosis important for your body?
Mitosis is very important to the human body because it allows for the duplication of body cells. Human body cells constantly need to be created for many reasons such as that the body is constantly changing in size, and when someone gets hurt, mitosis is used to repair the damaged area whether it be internal or external.