d. O2
This is because CO2 (Carbon Dioxide), energy (sunlight), and H2O (water) are all outputs of cellular respiration.
I think it's aeration but I'm not 100% sure though.
Answer:
You can use any of these questions, or all of them! I hope this will be helpful.
1.) How did scientists find out that llamas could be helpful?
2.) What will be done to the llama to find a cure, will the animal be hurt in any way?
3.) How long would it take until the cure could actually take action in the body?
4.) Could this be potentially harmful to be injected/ingested?
5.) What is the estimated time that it will take for this cure to become?
Gastroenterologist specializes in the treatment of diseases of the rectum and anus
Answer:
The periodic table _____.
1. is arranged by atomic mass
2. is arranged by number of protons
3. was developed by early alchemists
4. is divided into vertical periods and horizontal groups
Explanation: