Question

Chemosynthesizers can convert chemicals into biomass, and many types of chemosynthetic organisms congregate near hydrothermal vents, where chemicals are abundant.
Predict why there would be higher biomass and greater primary production of organisms living in the hydrothermal vent areas, in contrast to the areas outside the vent areas.

• A. The vents release an abundance of chemicals the organisms living there can use in the production of energy molecules.
• B. The heat released from the vents oxidizes chemicals in the water that organisms consume.
• C. It is too cold outside the vent areas, so most of the organisms live within the vent areas.
• D. Predators are rare in the vent areas, so organisms rarely venture out beyond the immediate vent area.

Answer 1

The correct option is A The vents release an abundance of chemicals the organisms living there can use in the production of energy molecules.

Hydrothermal vents are abundant in chemical substances that are released by the core of the earth. These vents are devoid of light and have a temperature of about 350${}^o$C. Therefore, this habitat can help only those organisms to survive which do not use light as a source of energy, that is autotrophs of this food chain should be able to synthesize food from chemicals present in the surrounding- example archea while withstanding the extreme temperature

So, the correct answer is 'The vents release an abundance of chemicals the organisms living there can use in the production of energy molecules'