The total set of feeding relationships in a biotic community is called
a food chain
trophic levels
food webs
ecosystem
- Trophic levels are formed by
- Which is the correct sequence in a food-chain
- Strontium- 90 can cause
- Soil particles are arranged in order of increasing size are
- In a food-chain, the saprophytic organisms are
- Synecology is the study of
- The source of energy in an ecosystem is
- Which one is the direct ecological factor ?
- The energy storage of consumer level is called
- One always finds many more of the prey species than of the predator. This is called a
- The transitional zone where two different types of communities meet is called the
- Which of the following atmospheric pollutants is not produced by the exhaust of motor vehicles in Delhi
- Species that occur in different geographical regions separated by special barriers are
- Gas liberated in Bhopal gas tragedy was
- Synecology is the study of
- Biome is
- An association between two or more species in which both are benefited is known as
- A food-chain consists of
- Some animals have a constant high body temperature. This is because
- Smog is a combination of
- The whale is
- Silent valley of Kerala is preserved because
- Association of a sea-anemone with hermit crab living in a gastropod shell is an example of
- Animals in cold regions have fur because
- All the living organisms on earth constitute
- The first fish that eats upon the planktonic form is
- Ultra-violet radiation from sunlight causes the reaction that produce
- A pond is
- Birth rate under ideal conditions is known as
- In an ecosystem the population of