Nitrogen-Fixing Bacteria

question 38

Multiple Choice

Nitrogen-fixing bacteria:

• A)oxidize ammonia to nitrates or nitrites
• B)oxidize ammonia to nitrous oxide
• C)reduce nitrates to nitrites
• D)reduce nitrogen gas to ammonia

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Definitions:

Metapopulations

A group of spatially separated populations of the same species which interact at some level, often considered when discussing the dynamics of species survival in fragmented habitats.

Spatially Separated

Positioned or distributed in different locations or spaces, often used to describe objects or individuals that are physically apart.

Gene Exchange

The process by which genes are transferred from one organism to another, often through mechanisms like bacterial conjugation, viral transduction, or sexual reproduction.

Logistic Growth

A model of population growth where the rate decreases as the population reaches its carrying capacity, eventually stabilizing.