Answer:
correct
Explanation:
Your lungs are part of the respiratory system, a group of organs and tissues that work together to help you breathe. The respiratory system's main job is to move fresh air into your body while removing waste gases.
On edge the answer is similar size, mass, and density.
Crossing over between two chromosomes
Answer:
common ancestor
Explanation:
If it is a cladogram or phylogenic tree which is what it sounds like your describing, the connection is that all organisms share a common ancestor :)
