Answer:
Codominance
Explanation:
Codominance occurs when both alleles participation in the expression of the genotype of an offspring, such as a flower with patches of different colours, each coming from a different allele.
I dont think it is symbiotic, it is parasitic relationship. They get blood supply of human and dont give anything useful to humans
The sentence probably saying about polyploid
Polyploid is when the cell duplicates a complete set of chromosome. This will result in one extra chromosome for each kind which makes them triploid, tetraploid or more. The polyploid organism will more likely to die. In the animal, the extra chromosome will cause sexual imbalance and can make it infertile.
Answer:
Its letter A because they are older
The answer is: Use right / the right to use
Use right could only exist if a person who own a certain property or resources willingly (without any threat) give permission to other people to use that property/resources.
In business environment, this type of rights mostly given for artistic products. For example, in order to input a music that you didn't create on your you tube video, you need to obtain the use right from the artist who created the music.