Answer:
An organism which has two different alleles of the gene is called heterozygous. Phenotypes (the expressed characteristics) associated with a certain allele can sometimes be dominant or recessive, but often they are neither.
Answer:
zika is a parasite
Explanation:
this is a common parasite but if you want my personal opinion, the parasite is none of these, its my younger brother.
Those would be enzymes I believe. They are the power house of the membrane and lower the amount of activation energy needed.