Choose the Correct Pairing of a Similarity of Marine and Freshwater

question 224

Multiple Choice

Choose the correct pairing of a similarity of marine and freshwater bony fishes, and a difference between them.

• A) Both lose uric acid across their gills-marine bony fishes produce a minimal amount of urine, whereas freshwater bony fishes produce a copious amount of dilute urine
• B) Both lose ammonia across their gills-marine bony fishes produce a minimal amount of urine, whereas freshwater bony fishes produce a copious amount of dilute urine
• C) Both raise osmolarity of their body fluids-marine bony fishes produce a minimal amount of urine, whereas freshwater bony fishes produce a copious amount of dilute urine
• D) Both raise osmolarity of their body fluids-marine bony fishes excrete excess salt across their gills, whereas freshwater bony fishes conserve salt
• E) Both lose ammonia across their gills-freshwater bony fishes produce a minimal amount of urine, whereas marine bony fishes produce a copious amount of dilute urine

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Definitions:

Selection Effectiveness

The degree to which natural selection is able to influence the frequency of alleles in a population, impacting genetic diversity.

Founder Effect

A genetic phenomenon that occurs when a new population is established by a very small number of individuals, leading to significant genetic drift.

Allele Frequencies

The relative frequencies of all the different alleles of a gene in a given population.

Genetic Drift

The process in which allele frequencies within a population change randomly with no influence from selective pressures, often affecting smaller populations more significantly.