Daily Subject wise Quiz Day 26 Environment I (Online Prelims Test)

1) Which one of the following is the correct sequence of ecosystems in the order of decreasing productivity?

2) Which of the followings statements best describes an Indicator species?

3) Consider the following statements with respect to the Tropic levels  

1. The energy pyramid of an ecosystem is always upright and narrows to the top.
2. The biomass in the upper trophic levels is generally very high as compared to the lower trophic levels.

Which of the above statements is/are correct?

4) Consider the following statements with respect to Vegetative Propagation

1. Plants raised by vegetative propagation can bear flowers and fruits earlier than those produced from seeds.
2. Vegetative propagation is not possible from the plants that have lost the capacity to produce seeds.
3. Plants produced through vegetative propagation are genetically similar enough to the parent plant.

Which of the above statements is/are correct?

5) Consider the following statements with respect to Food chain in ecosystem

1. In an aquatic ecosystem, more energy flows through grazing food chain than detritus food chain.
2. In a terrestrial ecosystem larger fraction of energy flow through detritus food chain than grazing food chain.

Which of the above statements is/are correct?