TLS Online TPP Program

#Question id: 28916


Which of the following hedgehog (Hh) proteins promotes spermatogenesis?

#Unit 4. Cell Communication and Cell Signaling
  1. sonic hedgehog (shh)
  2. desert hedgehog (dhh)
  3. indian hedgehog (ihh)
  4. drosophila hedgehog (Hh)
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TLS Online TPP Program

#Question id: 26903

#Unit 10. Ecological Principles

 Our ability to distinguish different biomes under similar conditions in different parts of the world depends primarily on which of the following factors that influence the distributions of growth forms?

TLS Online TPP Program

#Question id: 26904

#Unit 10. Ecological Principles

Ecologist has proposed following explanation to lead biodiversity at tropic.
a.Higher productivity in the tropics allows for more species
b)  Environments are more stable and predictable in the tropics, with fairly constant temperatures and rainfall levels year-round
c) Predators and pathogens limit competition in the tropics, which allows more species to coexist
d) High evolutionary speed at tropic than temperate

TLS Online TPP Program

#Question id: 26905

#Unit 10. Ecological Principles

The IUCN Red List is based on a set of criteria to evaluate species vulnerability to extinction. Which one or more of the options is/are used as criteria?
.Absolute population size
Geographic range
Economic value
Change in population size over time

TLS Online TPP Program

#Question id: 26906

#Unit 10. Ecological Principles

Match the Indian Biosphere reserves (Column P) with the key fauna (Column Q) they are intended to protection
 Which one of the following options has all correct matches between column P and Q?

TLS Online TPP Program

#Question id: 4562

#Unit 11. Evolution and Behavior

Which stratum should contain the greatest proportion of extinct organisms?

TLS Online TPP Program

#Question id: 4563

#Unit 11. Evolution and Behavior

If ʺxʺ indicates the location of fossils of two closely related species, then fossils of their most-recent common ancestor are most likely to occur in which stratum?