A.Food chains
B.Biological control
C.Natural barriers
D.All the above
Related Mcqs:
- The transfer of food energy from the source in plants through a series of organism with repeated stages of eating and being eaten is known as:
- The transfer of food energy from the sources in plants through a series of organisms with repeated stages of eating and being eaten is known as:
- The resources that can be replaced by natural ecological cycle is called __________?
- The transfer of energy from one trophic level to another is governed by the 2nd law of thermodynamics. The average efficiency of energy transfer from nerbivores to carnivores is:
- Trophic levels are formed by:
- Ecosystem creates:
- Most of the natural gas used in the United States is consumed by __________?
- A food web is____________?
- Other material values of biological diversity are:
- Primary structure of proteins determines__________??
