Answer:
By volume, oxygen is the second most abundant element in the hydrosphere and troposphere. The troposphere is the lowest part of Earth's atmosphere which is nothing but air, and the hydrosphere is made up of the Earth's water which is full of oxygen at any given moment.
Answer:
pleas clarify do you mean chiral molecules/enantiomers or a biological structure?
Explanation:
An evolutionary change. According to Darwin, organisms face multiple events where, without a change to match the dangers posed externally (such as environment, enemy threat, etc) that organism will perish without such variation.
Answer:
b. Mutations are random so it would be impsosbile to predict a specific mutation
Explanation: