Many Organs Have Adaptations to Increase the Rate of Diffusion

question 41

Multiple Choice

Many organs have adaptations to increase the rate of diffusion of a gas or solute.How are fish gills adapted to optimize oxygen absorption?

• A)Bidirectional flow of water across the gills
• B)Co-current flow of water across the gills and blood within the gill capillaries
• C)Continual flow of water across the gills
• D)Countercurrent flow of water across the gills and blood within the gill capillaries

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Definitions:

Genetic Factors

Aspects of an organism's genes that influence its traits and behaviors.

Environmental Factors

Components outside the organism that can affect its development, behavior, and survival.

Genotype

The genetic makeup of an organism, consisting of the alleles inherited from both parents, which influences physical and behavioral traits.

Phenotype

The observable characteristics or traits of an organism, resulting from the interaction of its genotype with the environment.