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TLS Online TPP Program

#Question id: 15173

Microbes such as Chlorobium and Chromatium develop as visible green and purple zones. These microorganisms use

#Part-B Specialized Branches in Biotechnology
  1. Hydrogen sulfide as an electron source, and CO2 from sodium carbonate as a carbon source
  2. Hydrogen sulfide as an electron source, and O2 from sodium carbonate as a oxygen source
  3. Mercuric chloride as an electron source, and CO2 from sodium carbonate as a carbon source
  4. Citrate as an electron source, and ethanol as a carbon source
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TLS Online TPP Program

#Question id: 11288

#Part-B Specialized Branches in Biotechnology

Below is a table showing the number of species and actual food web links observed in three different ecosystems. By calculating connectance as a measure of relative complexity of food webs, which of the following ecosystem are more complex? 
TLS Online TPP Program

#Question id: 11289

#Part-B Specialized Branches in Biotechnology

Consumption efficiency (CE) is the proportion of production at one trophic level (Prodn n-1) that is eaten by, or ingested, by the next trophic level (In) but Assimilation efficiency (AE) is the proportion of ingested energy assimilated in to blood stream

Which of the following is incorrect statement?

A) In terrestrial herbivore, AE is greater than CE

B) In aquatic herbivore AE is equal to CE 

C) CE of grass land herbivore is often greater than forest herbivore

D) AE of herbivore is often greater than carnivore
TLS Online TPP Program

#Question id: 11289

#Part-B Specialized Branches in Biotechnology

Consumption efficiency (CE) is the proportion of production at one trophic level (Prodn n-1) that is eaten by, or ingested, by the next trophic level (In) but Assimilation efficiency (AE) is the proportion of ingested energy assimilated in to blood stream

Which of the following is incorrect statement?

A) In terrestrial herbivore, AE is greater than CE

B) In aquatic herbivore AE is equal to CE 

C) CE of grass land herbivore is often greater than forest herbivore

D) AE of herbivore is often greater than carnivore
TLS Online TPP Program

#Question id: 11290

#Part-B Specialized Branches in Biotechnology

Which of the following statement are incorrect?
TLS Online TPP Program

#Question id: 11290

#Part-B Specialized Branches in Biotechnology

Which of the following statement are incorrect?
TLS Online TPP Program

#Question id: 11291

#Part-B Specialized Branches in Biotechnology

A small lake has three trophic levels- phytoplankton (autotrophs), Zooplankton (herbivore) and planktivorous fish (primary carnivore). In this lake, addition of nutrients is allowed to study the 'bottom up' effects". What is the expected biomass of phytoplankton and zooplankton tropic levels?