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12.Ecosystem
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The phosphorus rich fertilizer obtained from sea birds along the coast of Chile and Peru, is
A
Guano
B
Bone meal
C
Dung
D
Urea
Solution
(a)The excess of phosphate in the bodies of animals is excreted out through faces. The bird guano (excreta) contains a large amount of phosphate.
Standard 12
Biology
Similar Questions
Match the columns :
| Column – $I$ | Column – $II$ |
| $(i)$Primary succession | $(i)$ Development of ecosystem |
| $(ii)$Ecological succession | $(ii)$ Lichens |
| $(iii)$ Base species on rocks | $(iii)$ Near to the equilibrium with the environment. |
| $(iv)$ Climax community | $(iv)$ New species of lenvironment |
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