What is the role of DNA in cells?
Biology Practice EOC Questions

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Biology
•
10th Grade
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Medium
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1.
FLASHCARD QUESTION
Front
Back
DNA contains instructions for producing proteins, which are essential for the structure and function of cells.
2.
FLASHCARD QUESTION
Front
How do zebra mussels affect oxygen levels in aquatic ecosystems?
Back
Zebra mussels decrease oxygen levels by promoting algal blooms, which consume oxygen when they decompose.
3.
FLASHCARD QUESTION
Front
What is the impact of zebra mussels on fish and amphibian populations?
Back
Zebra mussel populations can cause algal blooms, decreasing oxygen concentration in the water, which can harm fish and amphibian populations.
4.
FLASHCARD QUESTION
Front
What factors can lead to low oxygen concentrations in aquatic environments?
Back
High phytoplankton populations can lead to low oxygen concentrations due to increased decomposition and consumption of oxygen.
5.
FLASHCARD QUESTION
Front
What is an algal bloom?
Back
An algal bloom is a rapid increase in the population of algae in water, often due to excess nutrients, which can lead to decreased oxygen levels.
6.
FLASHCARD QUESTION
Front
What is the significance of oxygen levels in aquatic ecosystems?
Back
Oxygen levels are crucial for the survival of aquatic organisms; low levels can lead to hypoxia, harming fish and other aquatic life.
7.
FLASHCARD QUESTION
Front
What is the relationship between phytoplankton and oxygen production?
Back
Phytoplankton produce oxygen through photosynthesis, making them vital for maintaining oxygen levels in aquatic ecosystems.
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