What are the methods of determining the size of a population?
Populations and Communities

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Science
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Methods include direct observation, indirect observation, and sampling. Death rate is NOT a method for determining population size.
2.
FLASHCARD QUESTION
Front
What are biotic components in an ecosystem?
Back
Biotic components are the living parts of the ecosystem, including all living organisms and those that were once living.
3.
FLASHCARD QUESTION
Front
What is immigration in the context of populations?
Back
Immigration refers to the movement of individuals into a new area or habitat, increasing the population size.
4.
FLASHCARD QUESTION
Front
What is mutualism?
Back
Mutualism is a symbiotic relationship where both species benefit, such as a shrimp cleaning parasites off a fish.
5.
FLASHCARD QUESTION
Front
What are some defense strategies of organisms?
Back
Defense strategies include camouflage, protective covering, and mimicry. Eating and sleeping are NOT considered defense strategies.
6.
FLASHCARD QUESTION
Front
What is the difference between abiotic and biotic components?
Back
Abiotic components are non-living parts of the ecosystem (like water and soil), while biotic components are living or once-living organisms.
7.
FLASHCARD QUESTION
Front
What is carrying capacity?
Back
Carrying capacity is the maximum number of individuals of a species that an environment can support sustainably.
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