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TLS Online TPP Program

#Question id: 9185

Plants are affected by an array of pathogens. Which of the following is a plant defense against disease?

#Section 2: Evolution
  1. cells near the point of infection destroying themselves to prevent the spread of the infection
  2. production of chemicals that kill pathogens
  3. acquiring gene-for-gene recognition that allows specific proteins to interact so that the plant can produce defenses against the pathogen
  4. All of the above are plant defenses against disease.
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TLS Online TPP Program

#Question id: 11771

#Section 1: Ecology

Reciprocal transplant experiments are designed to reveal whether differences between populations are due to:
TLS Online TPP Program

#Question id: 9571

#Section 1: Ecology

All homeostatic systems used by organisms to regulate body temperature are described by which of the following?
TLS Online TPP Program

#Question id: 12690

#General Aptitude

From four corners of a square sheet of side 4 cm, four pieces,each in the shape of arc of a circle with radius 2 cm, are cut out.The area of the remaining portion is :
TLS Online TPP Program

#Question id: 12265

#Section 1: Ecology

A metapopulation consists of
TLS Online TPP Program

#Question id: 8289

#Section 2: Evolution

The term convergent evolution is most applicable to which of the following features?