Answer:
The bird's respiratory system consists of paired lungs, which contain static structures with surfaces for gas exchange, and connected air sacs, which expand and contract causing air to move through the static lungs
Explanation:
Answer:
The Answer Is True.
Explanation:
Without any chlorophyll the energy available from the sun would not be in use by living organisms with out chlorophyll
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Ca+2 , the plus 2 indicates the loss of 2 electrons
Answer:
I suppose the answer is C