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: 11057

#Section 1: Ecology

Bombardier beetles release an explosive mixture of quinones and hydrogen peroxide from glands at the end of their abdomen when disturbed by grasshopper mice and other predators. This is an example of what kind of defense against predation?

TLS Online TPP Program

#Question id: 11058

#Section 1: Ecology

The pufferfish, a common marine fish, has extensive spines that extend outward when it swallows water, becoming several times its normal size. This is an example of what kind of defense against predation?

TLS Online TPP Program

#Question id: 11169

#Section 1: Ecology

The viceroy butterfly (limenitis archippus) resembles the queen butterfly (danaus gilippus), a species toxic to birds because of alkaloids it stores during larval development from the milkweeds it feeds upon. The viceroy butterfly is an example of what kind of defense against predation?

TLS Online TPP Program

#Question id: 11170

#Section 1: Ecology

Which of the following examples is not a behavioural defense against predators?

TLS Online TPP Program

#Question id: 11171

#Section 1: Ecology

Starlings often decorate their nests with sprigs of carrot leaves because

TLS Online TPP Program

#Question id: 11172

#Section 1: Ecology

Consider the consequences of a harmless prey that evolves toward mimicry of a model that has an antipredator defense (Batesian mimicry). What happens to the effectiveness of this defense as more and more prey in the population are harmless mimics