B7 Flashcards
What is ecology?
The study of interactions between organisms and their environment.
True or False: Ecosystems can be both natural and artificial.
True
Fill in the blank: The __________ is the role an organism plays in its environment.
niche
What is a food chain?
A linear sequence of organisms through which nutrients and energy pass as one organism eats another.
Multiple Choice: Which of the following is a producer? A) Deer B) Oak Tree C) Fox
B) Oak Tree
What is a trophic level?
A position in a food chain or food web, representing the flow of energy and nutrients.
True or False: Decomposers break down dead organic matter and recycle nutrients back into the ecosystem.
True
What does biodiversity refer to?
The variety of life in a particular habitat or ecosystem.
Multiple Choice: Which of the following is a biotic factor? A) Temperature B) Water C) Plants
C) Plants
Fill in the blank: The __________ is the maximum population size that an environment can sustain.
carrying capacity
What is an abiotic factor?
A non-living chemical or physical part of the environment that affects living organisms.
True or False: Invasive species can disrupt local ecosystems.
True
What is the main source of energy for ecosystems?
The Sun
Multiple Choice: Which process do plants use to make their food? A) Respiration B) Photosynthesis C) Decomposition
B) Photosynthesis
What is a habitat?
The natural home or environment of an organism.
Fill in the blank: __________ is the relationship where one organism benefits and the other is harmed.
Parasitism
What is mutualism?
A symbiotic relationship where both organisms benefit.
True or False: Competition occurs when two or more species compete for the same resources.
True
What is the difference between a population and a community?
A population is a group of individuals of the same species, while a community consists of different populations interacting in an area.
Multiple Choice: Which of the following is a secondary consumer? A) Grass B) Rabbit C) Hawk
C) Hawk
What is photosynthesis?
The process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.
Fill in the blank: __________ is the process by which plants lose water vapor through small openings in their leaves.
Transpiration
What is a keystone species?
A species that has a disproportionately large effect on its environment relative to its abundance.
True or False: An ecosystem can recover from disturbances if it has high resilience.
True
What is ecological succession?
The process of change in the species structure of an ecological community over time.
Multiple Choice: Which type of succession occurs on previously uninhabited land? A) Primary B) Secondary C) Tertiary
A) Primary
