Why are oceans least productive ?
Why are oceans least productive ?
Sea/ocean is less producer because $(i)$ It receives solar radiation in insufficient amount because sunlight decreases as the depth of sea increases.
$(ii)$ Sea water lacks Nitrogen, Which is an important nutrient substance for plants.
$(iii)$ Excessive amount of salts is not favourable for all plants.
$(iv)$There is no base to support plants
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Energy flow in ecosystem is.......
Among the following, what happens in abiotic components of an ecosystem
Among the following, what happens in abiotic components of an ecosystem
A plant being eaten by a herbivorous which in turn is eaten by a carnivorous makes
A plant being eaten by a herbivorous which in turn is eaten by a carnivorous makes
- [AIPMT 2002]
The percentage of light energy utilized for photosynthesis by higher plants is
The percentage of light energy utilized for photosynthesis by higher plants is
Consider the following statements about food chain
$I.$ The transfer of energy from producers to top consumers through a series of organisms is called food chain
$II.$ A food chain is always straight and proceeds in a progressive straight line
$III.$ In a food chain, there is unidirectional flow of energy from sun to producers and subsequently to series of different types of consumers
Which of the statements given above are correct?
Consider the following statements about food chain
$I.$ The transfer of energy from producers to top consumers through a series of organisms is called food chain
$II.$ A food chain is always straight and proceeds in a progressive straight line
$III.$ In a food chain, there is unidirectional flow of energy from sun to producers and subsequently to series of different types of consumers
Which of the statements given above are correct?