Answer:
the element oxygen , represented by the symbol o, is classified as a pure substance
Answer:
2 b
3 b
the others I really don't understand, they are incomplete or misspelled
64 is the answer because you would double 32 hope it helps.
So, recessive allele 'd' are dwarfs.
The dominant allele is 'D' determines tall.
All you have to do is try to cross the alleles together to get either a homozygous or heterozygous remain. So, you should be able to get Dd or DD.