Which Process Is Not a Main Function of the Kidneys

question 49

Multiple Choice

Which process is not a main function of the kidneys?

• A) Excretion of ammonia in freshwater fish
• B) Maintenance of water balance in mammals
• C) Regulation of blood plasma in amphibians
• D) Removal of excess water from extracellular fluid in crayfish
• E) Conservation of water in desert tortoises

---

Definitions:

Linkage Disequilibrium

Linkage disequilibrium exists for any two loci if the occurrence of an allele at one of the loci is nonrandomly associated with the presence or absence of an allele at the other locus.

Positively Selected Allele

A positively selected allele is a variant of a gene that provides an advantage to individuals in their environment, increasing its frequency in the population.

Directional Selection

Directional selection favors individuals on one end of the distribution of phenotypes present in a population.

Paralogs

Genes within the same organism that have evolved by duplication and may have different functions.