Y Flashcards
(13 cards)
What is the purpose of aquariums?
Aquariums teach the public about animals and contribute to our knowledge base on biodiversity conservation. They often provide opportunities for volunteering and learning about endangered species.
What does the direction of the arrows in a food web indicate?
The arrow represents energy and points toward the eater.
What is a primary producer?
A primary producer is an organism that gets their energy from sunlight and non-living sources.
What is a primary consumer?
A primary consumer is an organism that eats only producers.
What is a secondary consumer?
A secondary consumer is an organism that eats primary consumers.
What is a tertiary consumer?
A tertiary consumer is at the top of the food chain and feeds primarily on secondary consumers.
How do different factors affect water quality?
Factors such as distinct layers in the water column can create issues like nutrient accumulation, decreased oxygen levels, buildup of dangerous gases, and significant pH differences.
What impacts can occur due to stratification in lakes?
Nutrients become inaccessible, oxygen levels decrease, dangerous gases can build up, and lower layers may become more acidic.
How does the width, depth, and light intensity of a river affect its ecosystem?
These factors influence the survival of aquatic organisms and affect chemical properties like oxygen, pH, nitrogen, and phosphorus.
What are Harmful Algal Blooms (HABs)?
HABs are rapid growths of algae that produce toxic effects on people, fish, marine mammals, birds, and local economies.
Why are Harmful Algal Blooms happening more frequently?
They usually occur naturally, but human impacts have increased their frequency over the years.
What is microcystin?
Microcystin is a cyanobacteria found in freshwater and saltwater environments that produces neurotoxins affecting the liver, kidneys, and reproductive system.
What can we do to mitigate Harmful Algal Blooms?
We can increase public health research and develop methods to detect toxins.
