Practice Questions

TLS Online TPP Program

#Question id: 24005

Suppose you are a fresh appointee in a school, a girl student stays in school hostel throughout summer-break and preparing for the competitive examination. Because she does not rely on officials so she requests to collect her post at your postal address. What would you like to do in that case?

#General Aptitude

You never give her your on address as your suspect a foul game in it
You permit her on genuine humanitarian ground being a fair sex
You do not give permission as it is against your own principles
You permit her because you have some emotional inclination towards her

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TLS Online TPP Program

#Question id: 12083

#Unit 10. Ecological Principles

In bottom sediments of lakes and streams, organic matter is broken down by heterotrophic microorganisms and ammonia is released. Under aerobic conditions, specialized bacteria convert ammonia to nitrate (nitrification). This nitrate, together with nitrate from other sources, diffuses into the deeper sediments, where it may undergo anaerobic conversion to nitrogen gas (denitrification). These sediments typically contain oligochaete worms that live with their heads buried and their tails waving back and forth in the overlying water. Plastic columns were packed with freshly collected stream sediments and then covered with layers of nitrate enriched water. A similar set of columns was packed with sediment that had been sterilized and then covered with either nitrate-enriched water or distilled water. Oligochaete worms were collected and acclimated to 20°(C)Following acclimation, worms were rinsed in distilled water and then added to three sediment columns. The columns were incubated in the dark at 20°C and monitored every three days for changes in the concentration of nitrate in the overlying water. Nitrate concentrations in each of the experimental treatments were plotted against time, as shown in the graph below

It can be concluded from the figure that

TLS Online TPP Program

#Question id: 12019

#Unit 10. Ecological Principles

Chickadees were given an opportunity to store seeds in 72 possible storage sites consisting of holes drilled in small trees that had been placed in an aviary. Typically, the seeds were placed in only 4 or 5 storage sites. The chickadees were then removed from the aviary, the seeds removed from the storage sites, and each hole covered. A day later, the chickadees were returned to the aviary and they spent nearly 5 times as long pulling at the covers on storage sites than at the covers on sites where they had not stored food. This experiment indicates that chickadees

TLS Online TPP Program

#Question id: 12018

#Unit 10. Ecological Principles

The amount of energy entering a food chain depends on the

TLS Online TPP Program

#Question id: 3429

#Unit 11. Evolution and Behavior