He/she is talking about genetic disorders. Interesting topic. An oncologist is a cancer specialist so I don't know the specific cancer disorder but I'm sure there is one.
Answer:
The respiratory system brings oxygen unto the lungs, while the circulatory system delivers oxygen throughout the body.
Explanation:
Plant hormones shape the plant, affect seed growth, <span>affect which tissues grow up and which grow down, leaf formation, stem growth, fruit ripening</span><span>, and other factors.</span><span>
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Answer:
First one is " it is used for cell processes or released as heat."
Second one is "Secondary and tertiary consumers have to consume a lot more food to support themselves, so there are fewer of them."
Explanation:
You forgot to attach an image there is not graph to look at
