Podcast
Questions and Answers
What process do producers primarily use to convert sunlight into energy?
What process do producers primarily use to convert sunlight into energy?
- Photosynthesis (correct)
- Respiration
- Fermentation
- Decomposition
Eutrophication negatively impacts aquatic ecosystems by decreasing oxygen levels.
Eutrophication negatively impacts aquatic ecosystems by decreasing oxygen levels.
True (A)
What is the role of nitrogen-fixing bacteria in the nitrogen cycle?
What is the role of nitrogen-fixing bacteria in the nitrogen cycle?
To convert atmospheric nitrogen into forms usable by plants.
A __________ is a type of consumer that primarily feeds on plants.
A __________ is a type of consumer that primarily feeds on plants.
Match the following ecological terms with their definitions:
Match the following ecological terms with their definitions:
Flashcards
Photosynthesis
Photosynthesis
The process by which producers like plants use sunlight, carbon dioxide, and water to create glucose (sugar) and oxygen. It's the foundation of most ecosystems, providing energy for all living things.
Respiration
Respiration
The process by which organisms break down glucose (sugar) in the presence of oxygen, releasing energy, carbon dioxide, and water. It's how organisms extract energy from food.
Food Web
Food Web
A complex web of interconnected food chains that illustrates the feeding relationships within an ecosystem. It shows how energy flows between different organisms.
Carrying Capacity
Carrying Capacity
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Density-Independent Factors
Density-Independent Factors
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Study Notes
Ecology Review
- Photosynthesis and Respiration Equations: Students should know the equations for Photosynthesis and Respiration.
- Organisms Involved: Producers perform photosynthesis, while all organisms perform respiration.
- Nitrogen Cycle: Includes nitrification, denitrification, and nitrogen fixation. Bacteria play important roles.
- Impact of Human Activities: Eutrophication, combustion, and deforestation alter carbon and nitrogen cycles.
- Ecological Terms: Definitions for producer, consumer, ecosystem, herbivore, carnivore, omnivore, predator, prey, trophic levels, decomposers, autotrophs, heterotrophs, biomagnification (e.g., DDT), population, inter-specific competition, and intra-specific competition, biodiversity, and sustainability. Also succession (primary and secondary),
- Ecological Pyramids: Three types (number, biomass, energy). Information about how energy transfers between levels.
- Food Chains and Food Webs: Components (producer, herbivore, carnivore, apex predator), trophic levels, and consequence of removal of different species within the food web.
- Population Dynamics: Population growth, carrying capacity, and the concept of dynamic equilibrium. Graphs should demonstrate population growth, reaching the carrying capacity, and stabilizing at dynamic equilibrium.
- Density-Dependent and Density-Independent Factors: Factors (e.g., disease and natural disasters) influencing population size. Different examples to illustrate the difference between the two types of factors.
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