C. <span>Scientific ideas change over time as new information is discovered.</span>
I'm not for sure about it But i'm pretty sure it's D. Sorry if I'm wrong..
The pelagic zone can be contrasted with the benthic and demersal zones at the bottom of the sea. The benthic zone is the ecological region at the very bottom of the sea. It includes the sediment surface and some subsurface layers. Marine organisms living in this zone, such as clams and crabs, are called benthos.
Answer:
The membrane that covers the lungs is called the pleura :)
Explanation:
Answer:
<em>Hey there!</em>
3) Well injection is usually done through the vein because they need the substance to go into the blood.
4) Some people believe that the heart is on the left side because its the left ventricle and atrium responsible and when people hear left they think the heart is on the left.
5) People living in high altitudes don't get as much oxygen so their bodies evolved into carrying ,more RBC so more oxygen is carried into their bodies.
<em>Hope this helps :)</em>
