The traffic lights at three different road crossing change after every 48 sec , 72 sec, and 108 sec. Respectively . If they all change simultaneously at 8 : 20 : 00 hours , then at what time will they again change simultaneously ?

TLS Online TPP Program

#Question id: 12543

#Unit 10. Ecological Principles

Use Figure to answer the following questions. Examine this food web for a particular terrestrial ecosystem. Each letter is a species. The arrows represent energy flow.

Which species is most likely an omnivore?

TLS Online TPP Program

#Question id: 12544

#Unit 10. Ecological Principles

Use Figure to answer the following questions. Examine this food web for a particular terrestrial ecosystem. Each letter is a species. The arrows represent energy flow.

A toxic pollutant would probably reach its highest concentration in which species?

TLS Online TPP Program

#Question id: 12545

#Unit 10. Ecological Principles

Nitrogen is available to plants only in the form of

TLS Online TPP Program

#Question id: 12562

#Unit 10. Ecological Principles

In the nitrogen cycle, the bacteria that replenish the atmosphere with N

TLS Online TPP Program

#Question id: 12563

#Unit 10. Ecological Principles

How does phosphorus normally enter ecosystems? 

TLS Online TPP Program

#Question id: 12599

#Unit 10. Ecological Principles

What is the most important role of photosynthetic organisms in an ecosystem?