TLS Online TPP Program

#Question id: 12587


The most plausible  hypothesis to  explain why  species richness is  higher in  tropical  than in  temperate regions is that

#10. Ecological Principles
  1. Tropical communities are younger.
  2. Tropical regions generally have more available water and higher levels of solar radiation. 
  3. Higher temperatures cause more rapid speciation.
  4. Biodiversity increases as evapotranspiration decreases.
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TLS Online TPP Program

#Question id: 10364

#6. System Physiology – Plant

Which of the following is the most common type of symbiosis occurs between members of the plant family and soil bacteria?

TLS Online TPP Program

#Question id: 10369

#6. System Physiology – Plant

Which type of the nitrogen-fixing bacteria are thought to maintain a low oxygen concentration (microaerobic conditions) through their high levels of respiration

TLS Online TPP Program

#Question id: 10373

#6. System Physiology – Plant

The nodulation (nod) genes are classified as common nod genes or host specific nod genes. Some statements related to such classification are given below;

a) nod A is a common nod gene and nod Q is a host specific gene

b) nod B is a common nod gene and nod C is a host specific gene

c) nod C is a common nod gene and nod H is a host specific gene

d) nod H is a common nod gene and nod P is a host specific gene

Choose the correct answer from the above statements:

TLS Online TPP Program

#Question id: 10379

#6. System Physiology – Plant

Upon binding to Nod factors, activates the kinase activity of NFR1, this kianse activity of NFR1 activates which type of set of receptors?

TLS Online TPP Program

#Question id: 10385

#6. System Physiology – Plant

The leaves of many species are able to bend toward the sun during its progress across the sky, a phenomenon known as

TLS Online TPP Program

#Question id: 10386

#6. System Physiology – Plant

 During light-regulated plant development many seeds require light to germinate, a process called