Countercurrent Exchange in the Fish Gill Helps to Maximize

question 9

Multiple Choice

Countercurrent exchange in the fish gill helps to maximize

• A) endocytosis.
• B) blood pressure.
• C) diffusion.
• D) active transport.
• E) osmosis.

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Definitions:

Extreme Environments

Environments with conditions that are challenging to most life forms, such as extreme temperatures, pressures, or chemical concentrations.

Cyanobacteria

A phylum of bacteria that obtain their energy through photosynthesis and are known for being one of the largest and most important groups of bacteria on earth.

Anaerobic Bacteria

Bacteria that can live and grow in the absence of oxygen, often found in environments such as deep underwater sediments or the human gastrointestinal tract.

Archaea

Prokaryotic organisms that are members of the domain Archaea.