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what is the reason for low productivity of oceans despite occupying 70 % of the surface?
measurement of biomass in terms od dry weight is more accurate. why?
i have to make biology investigatory project of class 12 cbse on topic ecosystem.i dont know how to make it .please give me a sample project and help me to do this
what is the limitation of detritus food chain?
How would you explain the paradox that the pyramid of biomass in sea is inverted because biomass of fishes exceeds that of phytoplankton?
Who is considered as father of environmental science?
pls explain this....
ecosystems are not exempt from the second law of thermodynamics.they need a constant supply of energy to synthesise the molecules they require,to counteract the universal tendency towars increasing disorderliness.
pyramid of energy is always uprightupwards.why?
what is the difference between a saprophyte and saprotroph?
DRAW THE PYRAMID OF BIOMASS IN A SEA AND IN A FOREST. EXPLAIN GIVING REASONS WHY THE TWO PYRAMID IS DIFFERENT?
1)Difference between detritus food chain (DFC) and grazing food chain (GFC)?
2)Represent detritus food chain by ray diagram ?
why are algae a good source of food supplements
carbon cycle diagram
What does this line means,"In an aquatic system, GFC is the major conduit for energy flow" ?
examples of gaseous and sedimentary cycles
Difference between standing crop and standing state
In a pond ecosystem you may find the plant with purple flowers that spread very
collection of medicinal plants and its uses . how to prepare medicine using those med. plants??
plz help me on this . give the names of @least 13 common medicinal plants ?
when is the pyramid of biomass spindle shaped?
who perfomed the blender experiment in regard to certain nature of dna? what was the objective of this experiment ? pls explain the procedure in details
If we were to count the no. of insects feeding on a big tree,we would get an inverted pyramid.Why??
what is meant by term ecological succession?? provide details regarding ecological succession on land and water.
State the difference between the first trophic level of detritus food chain and grazing food chain.
The first trophic level of detritus food chain is often the dead and decaying organic matter whereas the grazing food chain starts with the living green plants.
The first trophic level organisms of detritus food chain are saprophytes whereas the starters of grazing food chain are producers.
Is that second point actually right? How can the organic matter and saprophytes be the same?Aren't saprophytes the consumers of detritus?Correct me if i'm wrong.
what is meant by FADH2 and NADH2 in bioenegetics???what r its functions?
what do phytophagous insects feed on?
ecological pyramids and describe with examples, pyramids of number
why measurement of biomass in terms of dry weight is more accurate?
Explain the difference between seral stage and climax community during succession .
1. In an ecosystem dominated by trees, the pyramid (of numbers) is _________ type. How is it inverted ? Can't it be spindle shaped too?
2.Which one of the following has the largest population in a food chain? shouldnt it be producers as decomposers are not included in the food chain?.
what is the difference between regulators and conformers
why is the pyramid of biomass of phytoplankton inverted ?
what is sere
what is BIOMASS
suggest some investigatory projects of biology
An ecosystem which can be easily damaged but can recover after some time if damaging effect stops will be having
1) Low stability high resilience OR
2) High stability low resilience
The second trophic
level in a lake is-
A man who is eating curd/yoghurt can be placed in which trophic level and why?
Differences between Carbon and Phosphorous cycle ?
What is the difference between decomposers and detritivores?
List three parameters used for constructing ecological pyramids. Describe any one instance where the pyramid may look inverted.
Is the pyramid of numbers for forests inverted or upright? Explain.
rnWhat are the three types of ecological pyramids. What information is conveyed by each pyramid with regard to structure, function and energy in the ecosystem.rn
What are the three types of ecological pyramids. What information is conveyed by each pyramid with regard to structure, function and energy in the ecosystem.
Can you give 2 differences between carbon phosphorous cycle?
What is meant by competitive release in an ecosystem?
Which one of the
following has the largest population in a food chain?
Why Saprophytes are not included in pyramids?
plz help me...
the differences between grazing food chain and detritus food chain ?
difference between upright pyramid and inverted pyramid?
meaning of detritus?
name the pioneer and the climax species in a water body.mention the changes observed in the biomass and the biodiversity of the successive seral communities developing in the water body.
1) Vertical distribution of different species occupying different levels is called ___________.
2) Of the incident solar radiation (on earth) less than 50% of it is __________________.
what are plant hormones? give the uses of the plant hormones like auxins,gibberlins,cytokinins and artificial hormones like ABA,ethylene??
why does human body maintain constant temperature both in summerss and winters ?
Secondary producers are
(d) None of the
explain with the help of an example how the percentage cover is a more meaningful measure of population size than mere numbers.
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