Part B (Pages 11 - 20) Flashcards
How do fish die due to fertilizers?
The oxygen is removed from the water via abnormal growth of algae, suffocating the fish.
What does Untreated Sewage cause?
Untreated Sewage causes an increase in the growth of water plants. It has the same effect as fertilizers.
Give examples of a producer in a food chain.
Leaves, Sun, Plants, etc.
What is biomass?
Biomass is the mass of living material in plants and animals.
What is the source of all energy?
Light energy from the sun.
What is a consumer?
An organism that eats other organisms.
How is energy lost from the food chain?
The repair of animal or plant cells.
What happens if we eat plants?
The food chain will be shorter, and thus less energy is lost.
What factors affect the activity of decomposers?
Temperature, Oxygen, pH and Heavy Metals.
Why do animals lose more heat than plants?
Because their metabolism is higher.
Why do warm-blooded animals lose more heat than cold-blooded animals?
Because warm-blooded animals need to create a constant temperature.
What are the rules for a pyramid of number?
- The producer is always at the bottom.
2. The size of every block shows the number of animals in the food chain.
What are the rules for a pyramid of biomass?
- The producer is always at the bottom.
2. The size of every block shows the dry mass of the plants or animals in the food chain.
What are decomposer?
Decomposers digest and use animal and plant waste for growth and respiration.
What do decomposers release?
Decomposers release nitrates into the soils, which plants use for growth.
