Answer:
I did 4 crossovers and followed the genotype. That's how I did it.
Explanation:
I have no idea what that means but the answer is b
Answer and Explanation: The excretory system helps the respiratory system by getting rid of carbon dioxide. The respiratory system helps the excretory system by getting rid of CO2 from the body. They both need each other and if one or the other did not exist, we might've not been able to survive. Tis demonstrates how vital they are for the human body.
I believe it is atom, then tree seedlings, then a cat, then a fence panel, then a pecan tree and lastly the house
