Characteristics of Ecosystem
Trending Questions
Q. The upright pyramid of number is absent in
- Lake
- Grassland
- Pond
- Forest
Q. Food web and food chains are made up of
- trophic levels
- food levels
- ecosystem
- communities
Q. The flow of energy in an ecosystem can be explained with the help of
- Hardy - Weinberg law
- Law of thermodynamics
- Law of co-dominance
- Blackmann's law of limiting factor.
Q. As it travels along the food chains, the concentration of DDT
- increases
- remains constant
- decreases
- fluctuates randomly
Q.
What is food chain
Q.
Which best describes the first law of thermodynamics?
Energy can neither be created nor destroyed, but it can change into matter
Energy can neither be created nor destroyed, but it can change from one energy form to another
Some useful energy is lost as heat whenever an energy transfer occurs
Energy transfers are 100% efficient in changing energy from one useful form to another
Q. Biological magnification is highest in food consumed by ________.
- humans
- snakes
- insects
- reptiles
Q. Show steps of food chains operating in:
(a) Forests
(b) Grasslands
(c) Ponds
(a) Forests
(b) Grasslands
(c) Ponds
Q. Trophic level of an organism is its ________.
- position in a food chain
- stage in an ecological niche
- number in an ecosystem
- energy level in a food web