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TLS Online TPP Program

#Question id: 9052

Which of the following causes seasons on Earth?

#Section 2: Evolution
  1. the variation in proximity of the Earth to the sun at different times of the year
  2. the constant tilt of the Earth, combined with its orbit around the sun
  3. the distance between the Earth and the sun in winter versus in the summer
  4. the variation or wobble of Earth's tilt during the year
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TLS Online TPP Program

#Question id: 11356

#Section 1: Ecology

The Lotka-Volterra population models for predator and prey result in:
TLS Online TPP Program

#Question id: 10241

#Section 1: Ecology

In an Asian rice paddy, carp eat decaying material from around the base of rice plants while a snail scrapes algae from the leaves, stems, and roots of the same plant. They can survive at the same time in the same rice paddy because they
TLS Online TPP Program

#Question id: 3369

#Section 2: Evolution

Genetic drift refers to random changes in allele frequencies over time leads to following consequence

a. Loss of genetic diversity per generation   

b. change in allelic frequency just by chance 

c. It caused adaptive evolution

d. It one allele may reach to 0 frequency
TLS Online TPP Program

#Question id: 4942

#Section 2: Evolution

Which of the following has not yet been synthesized in laboratory experiments studying the origin of life?
TLS Online TPP Program

#Question id: 7499

#General Aptitude

Two trains, one from A to B and the other from B to A, start simultaneously. After theymeet, the trains reach their destinations after 4 h and 9 h respectively. The ration of their speeds is