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BIO 251 Exam 3 Questions and Correct Answers the Latest Update and Recommended Version

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BIO 251 Exam 3 Questions and Correct
Answers the Latest Update and
Recommended Version
Niche

✓ Conditions that an organism can survive and have positive fitness/reproduce



Population

✓ group of individuals of the same species that live in the same place



Community

✓ A group of organisms of different species in the same place at the same time



Ecology

✓ The study of organisms and how they interact with each other and their environment



Ecosystem

✓ The living and nonliving components of an area (community + abiotic components)



Biome

✓ All regions that share similar organisms and environmental conditions



Biosphere



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✓ All living things on Earth



Temperature

✓ Varies with space (latitude, proximity to water, altitude, wind...) and time (climate
change, seasonality, day/night)



Abundence

✓ # of individuals



Density

✓ # of individuals per unit area of volume



Ways to quantify density?

✓ transects, quadrats, mark-recapture



Zoonosis

✓ An infectious disease that is transmissible from animals to humans.



Virus

✓ An infectious particle incapable of replicating outside of a cell, consisting of an RNA or
DNA genome surrounded by a protein coat (capsid) and, for some viruses, a membranous
envelope.



Lytic cycle

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