Selective breeding is something only ascended organisms can adapt to. Us humans use selective breeding. Animals without complex language, artistic capabilities, etc, are unable to adapt to C.
D is your answer.
Answer: circulatory system
Explanation:
Blood that return from the upper and lower parts of the body are deoxygenated hence they are transported to the heart for oxygenation. therefore blood enter the heart through vena cava ( the main vein) to the right auricles and it goes to the lower part of the heart which is the right ventricles which is more muscular. due to this blood is pumped from the right ventricles through pulmonary vein which pumps blood to the left ventricles through pulmonary artery and it is allowed to the left ventricles in the lower part of the heart and it pumped back in the body through the aorta( the main artery) .
Answer:
-Building blocks are the fundamentals to an overall result, in this case being the characteristics of a human being.
-This is related to genes as the variety of building blocks can make a completely different "outcome" just as a different gene can trigger a different characteristic.
- Without different building blocks, all outcomes will be the same, just as humans. So a variety of "building blocks" are needed for diversity.
Explanation:
Hope this helps.
The answer is definitely
A. energy conversion
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