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#Question id: 11986


Which of the following statements is (are) true of fixed action patterns? 

#10. Ecological Principles
  1. They are highly stereotyped, instinctive behaviours.
  2. They are triggered by sign stimuli in the environment and, once begun, are continued to completion. 
  3. An inappropriate stimulus can sometimes trigger them.
  4. A, B, and C
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TLS Online TPP Program

#Question id: 10527

#6. System Physiology – Plant

Based on their feeding behaviors, three major types of insect herbivores can be distinguished, which evades the constitutive defense;

A) Phloem feeders                                                                    i) caterpillars, grasshoppers, and beetles

B) Cell-content feeders                                                            ii) aphids and whiteflies

C) Chewing insects                                                                    iii) mites and thrips

Correctly match the feeding behaviour with its insects;

TLS Online TPP Program

#Question id: 10528

#6. System Physiology – Plant

The insect ingests plant tissue containing the fatty acids, an enzyme in the gut conjugates the plant-derived fatty acid to an insect-derived amino acid typically;

TLS Online TPP Program

#Question id: 10529

#6. System Physiology – Plant

Insects produces an elicitors molecules that is caeliferins at the wound site in Arabidopsis plant, which induces

TLS Online TPP Program

#Question id: 10538

#6. System Physiology – Plant

Injury to the leaf caused by herbivory activates which types of ion channels?

TLS Online TPP Program

#Question id: 10539

#6. System Physiology – Plant

All plants releases green-leaf volatiles in response to mechanical damage, this volatile is a mixture of

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#Question id: 10541

#6. System Physiology – Plant

Green-leaf volatiles act as potent signals,  which of the following option is incorrect about this volatile compound