Answer:
designer babies!
Explanation:
messing with genetics for preferred traits will inevitably be an expensive thing to do, so it could result in a generation of 'perfect' babies that we're genetically engineered, but that only the wealthy can afford to have. extremely unethical, even though it may start with good intentions (disease resistance, for example).
Answer:
an element is a pure substance which can not be spilt into simpler substances by chemical means
Explanation:
examples hydrogen, oxygen, copper
Answer:
The yam was the cornerstone of Mongol administration and allowed the Great Khan to run one of the largest empires in history.
Explanation:
this blood type is A as it contains antigen A which reacts with anti A