Answer:
Convergent evolution; even though these animals are all different classes, they have developed similar features due to the environments they live in. We call these analogous features and the means by which they develop convergent evolution.
The advantages of artificial blood are as follows -
a) It is easy to produce large amount of artificial blood and thus it helps in reducing the blood shortages.
b) The chances of spreading a disease through blood are also reduced as the blood is made in a safe and secure place. Also the full history of artificial blood is known to the doctors.
<u>Answer:
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When the outer electron shell is full in an element, this creates a Noble gas.
<u>Explanation</u>:
Noble gases are the elements that belong to group 18 in the periodic table. Noble gases are also called as inert gases. The outermost shell of the noble gases are fully filled by electrons. Due to this the noble gases don’t react with any other elements and remain isolated.
There are 6 noble gases in the periodic table. They are helium (He), Argon (Ar), Neon (Ne) Krypton (Kr), Radon (Rn) and Xenon (Xe). Noble gases conduct electricity. They are fluorescent, odorless and colorless. Noble gases are used a maintain stable elements in a constant and safe environment.
Your answer is going to be C I have a 100% in biology