Home
Class 12
BIOLOGY
Greatest producers of organic matter are...

Greatest producers of organic matter are

A

Crop plants

B

Forests

C

Plants of the land area

D

Phytoplankton of oceans.

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

In an ecosystem the rate of production of organic matter during photosynthesis is termed as

A sample of pond water conditioning 20mg of organic matter requires 16ms of dissolved oxygen.(Pond water contains 10mg of organic matter per 2 liters).it's BOD is

The boimass avaibale foe consumption to heterotrophs and the rate formation of new organic matter by consumers rate defined as

Match List-I with List-II and select the correct answer using the codes given below the lists {:(,"List-I",,"List-II"),(A.,"The amount of energy accumulation in green plants through the process of photosynthesis",1.,"Gross primary productivity"),(B.,"The total organic matter synthesized by the producers in the process of photosynthesis per unit time and area",2.,"Primary productivity"),(C.,"Rate of storage of organic matter in plant tissues in excess of the respiratory utilization during the measurement period",3.,"Secondary productivity"),(D.,"Rate of energy storage at consumer level",4.,"Net primary productivity"):}

When fungi feed on dead organic matter, they are known as

Secondary productivity is rate of formation of new organic matter by:

The rate of formation of new organic matter by rabbit in a grassland is called

A sample of pond water contains 40mg of organic matter requires 32 mg of dissolved oxygen.if pond water contains 1100mg of organic matter per two litres, calculate BOD value of the water sample.

A multicellular mass of filaments that spreads through the organic matter being used by fungi is called

COD value of a water sample is 40 ppm, Calculate the amount of acidified K_2Cr_2O_7 required to oxidise the organic matter present in 500 ml of that water sample.