Answer: The circulatory system and the respiratory system.
Explanation:
Gas exchange between tissues and the blood is an essential function of the circulatory system. In humans, other mammals, and birds, blood absorbs oxygen and releases carbon dioxide in the lungs. Thus the circulatory and respiratory system, whose function is to obtain oxygen and discharge carbon dioxide, work in tandem.
Answer: Option C
Explanation:
Amino acids are the polymers that leads to the formation of the polymer proteins. The amino acids are joined together by the polypeptide bond.
In case of sugars the simple sugars are joined together by the glycosidic bond to form a more complex structure known as starches. The simple sugars are easily digested and are less complex in terms of bonding and structure.
Answer:
Trees are known as producers, plants and autotrophs in ecology.
Explanation:
Gregor Mendel<span> conducted hybridization experiments on around 29,000 </span>pea plants<span>. </span>Peas<span> were an ideal choice for </span>Mendel<span> to use because they had easily observable traits there were 7 of which he could manipulate. He began his experiments on </span>peas<span> with two conditions.</span>
