Which one of the following factors is biotic?

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(B) Biotic factors refer to all living organisms or their biological products in an ecosystem. Among the given options,$CO_2$ content in the soil is i

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CO2 content of the soil

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(B) Biotic factors refer to all living organisms or their biological products in an ecosystem. Among the given options,$CO_2$ content in the soil is influenced by the respiration of soil organisms and plant roots,making it a factor related to biological activity. However,in the context of standard ecological classification,all options provided (Photoperiod,$CO_2$ content,Soil texture,Rainfall) are technically abiotic factors. If the question implies which factor is most directly influenced by biological processes,$CO_2$ content is the most appropriate choice as it is a byproduct of respiration.

Similar Questions

Which of the following is the most ecologically relevant environmental factor?

Biotic factors are

$A$ - The salt concentration is less than $5$ (parts per thousand) in inland waters.
$R$ - The salt concentration is $30 - 35$ (parts per thousand) in the sea.

Organisms that can tolerate only a narrow range of salt concentrations are called . . . . . . .

$A$ biome consists of organisms of various trophic levels:

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