<span>Unconformities occur when younger rock is placed on top of older rock
hope this helps
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Answer:
A
Explanation:
The pulmonary artery carries de-oxygenated blood from the right ventricle of the heart to the lungs. It is the only artery that carries de-oxygenated blood. This blood is usually from the tissues and has a lot of carbon dioxide from the cellular respiration of cells around the body. The blood is pumped to the lungs to be oxygenated and the carbon dioxide expelled.
(A)Until the onset of PUBERTY,
1/2
For instance the two parents could be AB and AB
The possible combinations are: AA AB BA BB
2/4 of those are heterozygous, or 1/2.
<span>Biology is a very important thing in life it helps us understand what all other living creatures live and what they do to survive and that will lead us to ideas to help us understand about living creatures.</span>
