Answer:
your right!
Explanation:
i had something like this and i got a 100% on my exam the evolution issue was sometime in the 1990's.
There are two hydrogen atoms in a molecule of water.
Answer:
zinc oxide is a pure substance
Answer:
Gene. A segment of a DNA molecule (a sequence of bases) that codes for a particular protein and determines the traits (phenotype) of the individual. A gene is the basic unit of heredity in a living organism.
