Answer:
A biotic factor is a living organism that shapes its environment. In a freshwater ecosystem, examples might include aquatic plants, fish, amphibians, and algae. Biotic and abiotic factors work together to create a unique ecosystem.
Explanation:
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Answer:
Causes: Improper food handling, Bad Hygiene, Undercooked food.
Risk: Salmonella, weaken's immune system, and possibly end in hospital.
Treatment: Hydration, & medication.
The allele that is not expressed or is hidden is the recessive allele.
