The outward manifestation of a disease, often influenced by both genes and the environment, is called the disease:
a. genotype.
b. allele.
c. phenotype.
d. dominance

C. phenotype.

Explanation:

The disease phenotype is an observable characteristic or trait of a disease. It is influenced by the genetic make up and the surrounding environment of the organism. The appearance of symptoms, biochemical and physiological development of the disease is associated with the traits inherited from parents and also under the influence of the environment.

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)

-hails tea

explanation:

-t poses