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TLS Online TPP Program

#Question id: 10332

The four-chambered hearts of birds and the four-chambered hearts of mammals evolved independently of each other. If one were unaware of this independence, then one might logically conclude that

#Unit 9. Diversity of Life Forms
  1. the birds were the first to evolve a 4-chambered heart.
  2. birds and mammals are more distantly related than is actually the case.
  3. early mammals possessed feathers.
  4. the common ancestor of birds and mammals had a four-chambered heart.
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TLS Online TPP Program

#Question id: 29038

#Unit 11. Evolution and Behavior

Which one or more of the following is prediction or assumption of the handicap principle for the evolution of sexual signals?
I- Females prefer costly signals
II- Costly signals are reliable indicators of signaller quality
III- Honest signals are costly to produce.
IV- Males displaying costly signals are not chosen by females
TLS Online TPP Program

#Question id: 10596

#Unit 10. Ecological Principles

In a experimental population the birth rate is 18 per 1000 and death rate is 14 per 1000. Size of population is 10,000 at time t then what will be size of population at time t+1?
TLS Online TPP Program

#Question id: 2304

#Unit 2. Cellular Organization

Which of the following is generally absent from animal cells?
TLS Online TPP Program

#Question id: 5245

#Unit 8. Inheritance Biology

Which method of gene transfer involves direct contact between the bacteria?
TLS Online TPP Program

#Question id: 19703

#Unit 13. Methods in Biology

What is aVR in augmented unipolar limb lead?