Cellular respiration takes place in the mitochondria, which is the powerhouse of the cell<span>.
Also, the 3 phases of cellular respiration are glycolysis, the Krebs Cycle, and Electron Transport :)</span>
Answer:
1.A tissue is a collection of similar cells that work together to perform a specific job.
An organ is a collection of different tissues that work together to perform a specific job. The function of a part of an organism is what it actually does (it's job)
2.The structure of the alveoli as a web of blood vessels surrounding an air sac allows blood cells take in oxygen and bring it into the lungs (organ)
A. chemicals, the constriction of the pupil are usually caused by opiates anti-hypertension drugs.
Answer: Four pulmonary veins.
Explanation: Oxygen and nutrient rich blood will flow from the lungs back into this part called the left atrium (Or as some will call it, the left upper chamber in the heart). From there, it goes through four pulmonary veins.
Hope I could help! :)
