Answer:
I think it is colon because the other ones did not make sense
Hope you have a good day
Answer:
There wont be any sound if its a vacuum :)
A is the answer, a squirrel wouldn't need to swim, a desert animal needs to be able to deal with low water conditions because there is little water in the desert and birds need to be able to groom themselves.
Answer:
When CO2 is breathed into the lungs, it dissolves in the water there, diffuses across the alveolar-capillary membrane, and enters the bloodstream. As it combines with water, it forms carbonic acid, making the blood acidic. So CO2 in the bloodstream lowers the blood pH.
Answer: c) Endemic
Explanation:
Endemism is the ecological state of a species being unique to a defined geographic location, such as an island, nation, country or other defined zone, or habitat
