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Questions and Answers
What are biotic factors?
What are biotic factors?
- Factors that affect climate
- Elements that do not influence growth
- Living components that affect other organisms (correct)
- Nonliving components of an environment
What do abiotic factors include?
What do abiotic factors include?
- Living organisms
- Decomposers
- Mutual relationships between species
- Environmental conditions like climate and geology (correct)
What is a decomposer?
What is a decomposer?
Organisms that break down dead or decaying organisms.
What is meant by limiting factors in ecology?
What is meant by limiting factors in ecology?
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What is an autotroph?
What is an autotroph?
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Define an omnivore.
Define an omnivore.
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What defines a herbivore?
What defines a herbivore?
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What is a carnivore?
What is a carnivore?
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What occurs during primary succession?
What occurs during primary succession?
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What characterizes secondary succession?
What characterizes secondary succession?
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Define botany.
Define botany.
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What is a heterotroph?
What is a heterotroph?
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Study Notes
Biotic and Abiotic Factors
- Biotic Factors: Living components in an environment that influence the life of organisms, like predators and prey interactions.
- Abiotic Factors: Nonliving elements affecting ecosystems, encompassing climate, geology, and atmospheric conditions.
Nutritional Roles in Ecosystems
- Decomposers: Organisms that break down dead matter, facilitating nutrient cycling and energy flow in ecosystems; they are heterotrophic, relying on organic substrates.
- Autotrophs: Organisms that produce their own food using inorganic substances and energy sources; examples include green plants, algae, and certain bacteria.
- Omnivores: Animals that consume both plant and animal matter; they can be predators or scavengers depending on their feeding habits.
- Herbivores: Organisms that exclusively eat plants; some feed on living plants while others break down dead plant matter.
- Carnivores: Animals that primarily consume meat from live or dead sources, with some species considered carnivorous despite low meat intake.
Ecological Succession
- Primary Succession: Occurs in lifeless areas with no soil, such as after lava flows or glacier retreats; initiates new ecosystems.
- Secondary Succession: Follows disturbances in established ecosystems, like forest fires, allowing recovery and regeneration using preexisting soil.
Branches of Biology
- Botany: Study of plant life; encompasses various sub-disciplines and is critical for understanding ecosystems; specialists in this field are called botanists.
- Heterotrophs: Organisms that consume other living entities within a food chain, taking on roles of herbivores, carnivores, or omnivores.
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