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TLS Online TPP Program

#Question id: 4599


Many crustaceans (for example, lobsters, shrimp, and crayfish) use their tails to swim, but crabs have reduced tails that curl under their shells and are not used in swimming. This is an example of ________.

#Unit 11. Evolution and Behavior
  1. convergent evolution

  2. a homologous structure

  3. natural selection

  4. a vestigial trait


Answer:- Option(s): 4


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TLS Online TPP Program

#Question id: 10986

#Unit 7. System Physiology – Animal

Which of the following conditions at the A-V node will cause a decrease in heart rate?

TLS Online TPP Program

#Question id: 10309

#Unit 6. System Physiology – Plant

Which of the following carbon compound also called the oxoglutarate? 

TLS Online TPP Program

#Question id: 10294

#Unit 6. System Physiology – Plant

Which of the following route are available for the oxidation of sugars in plant cells?

TLS Online TPP Program

#Question id: 10501

#Unit 6. System Physiology – Plant

Which defenses require specific detection systems and signal transduction pathways that can sense the presence of an herbivore or pathogen and alter gene expression and metabolism accordingly

TLS Online TPP Program

#Question id: 44

#Unit 1. Molecules and their Interaction Relevant to Biology

The four covalent bonds in methane (CH4) are arranged around carbon to give which one of the following geometries?

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