Pregunta
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Respuesta correcta
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What are the two main types of factors that interact in an ecosystem? :
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c) Biotic and abiotic |
What are bio-elements? :
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c) Chemical elements essential for life |
Which of the following is NOT a primary bio-element? :
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b) Iron |
Pregunta
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Respuesta correcta
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How do bio-elements circulate in an ecosystem? :
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b) Through biogeochemical cycles |
What is the relationship between bio-elements and energy flow :
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c) Bio-elements are cycled through ecosystem |
Which of the following is NOT a secondary bio-element? :
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b) Carbon |
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