Question
What does secondary productivity in an ecosystem indicate? List any two factors by which productivity is limited in an aquatic ecosystem.
✓
Answer
The rate of assimilation and formation of new organic matter by consumers is called secondary productivity.
The factors which affect productivity in an aquatic ecosystem are:
- Nitrogen in marine ecosystem.
- Light, which decreases with increasing depth of water.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Write the full form of the following:
- MMR.
- IVF.
- GIFT.
- ART.
pairs of contrasting characters of:
- Position of flowers.
- Colours of pod.
- Shape of pod.
- Colour of seed, that were selected in pea plant by Mendel.
What name is given to the cells of inner cell mass, that have the potential to give rise to all tissues and organs in a human being?
Define transgenic animals. Write one benefit for man by transgenic animals.
A culture plate of Lactobacillus shows blue-coloured colonies and colourless colonies. Explain the principle involved in the formation of such variance in the colour of colonies.
With respect to understanding diseases, discuss the importance of transgenic animal models.
In the given figure, give the name and functions of parts labelled A and B.
Structural genes may be monocistronic or polycistronic. Bring out the differences between the two.
Name any four recent extinctions of animals.
What is semen?