C. prokaryotes do not have a well defined nuckeus
Answer:
micronucleus and macronucleus
Answer:
B) venous blood and aveolar
Explanation:
Partial pressure of carbon dioxide in the aveolar is the lowest, it is 40mmHg (millimetre mecury ) while the partial of carbon dioxide in venous blood is the highest at 45 to 50 mmHg (millimetre mecury)

the answer is d.pacific ocean is the largest ocean in the world it is also the world's deepest ocean.