A.) Veins in the pulmonary circuit carry oxygen-rich blood
red blood cells are used to circulate oxygen through out the body, thus it is true.
The train traveled 100km (50x2) down and then 375km (75x5) up. So the train is 275km (375-100) up from where it started.
Answer:
hello
Explanation:
Phytoplankton are the autotrophic components of the plankton community and a key part of ocean and freshwater ecosystems.
have a nice day
