
Ch. 4 Interacting with the Biosphere
Flashcard
•
Biology
•
9th - 12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is nitrogen fixation?
Back
The process of converting atmospheric nitrogen gas (N2) into a form that living organisms can use, such as ammonia (NH3).
2.
FLASHCARD QUESTION
Front
What organisms are primarily responsible for nitrogen fixation?
Back
Bacteria in the roots of legumes, bacteria in the soil, and through natural processes like lightning.
3.
FLASHCARD QUESTION
Front
What is biodiversity?
Back
The variety of life in a particular habitat or ecosystem, including the number of different species.
4.
FLASHCARD QUESTION
Front
What factors can increase biodiversity?
Back
High food availability, abundant resources, and a greater birth rate than death rate in populations.
5.
FLASHCARD QUESTION
Front
What is a surge in one specific population's numbers likely to cause?
Back
It can lead to decreased biodiversity as it may outcompete other species for resources.
6.
FLASHCARD QUESTION
Front
What is carrying capacity?
Back
The maximum number of individuals of a species that an environment can sustainably support.
7.
FLASHCARD QUESTION
Front
What happens to a population as it approaches its carrying capacity?
Back
The population growth rate slows down due to increased competition for limited resources.
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