So abiotic means nonliving, so the only abiotic option is B. the gravel on the bottom of the aquarium.
Answer:
I wondered that too! maybe we are doing high school level questions?
Explanation:
Answer: omega 3's
Explanation:
-combination of marine & food biotechnology
-polyunstaturated fatty acids (PUFAs)
-3 types in human physiology
->α-linolenic acid (ALA) - found in plant oils
->eicosapentaenoic acid (EPA)
->docosahexaenoic acid (DHA)
-N-3 fatty acids have health benefits & are considered essential fatty acids, meaning that they cannot be synthesized by the human body - but are vital for normal metabolism
->table of dietary source of Omega-3
-->fish is commonly used but dangerous as you can contract mercury poisoning
Answer:
Bacteria and Plants use the process of chemosynthesis to create/make food using chemical reactions.
Explanation:
"Autotrophs that perform chemosynthesis do not use energy from the sun to produce food. Instead, they make food using energy from chemical reactions, often combining hydrogen sulfide or methane with oxygen. ... Bacteria that live in the deep ocean, near hydrothermal vents, also produce food through chemosynthesis."
