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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?

#Unit 9. Diversity of Life Forms
  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: 1429

#Unit 4. Cell Communication and Cell Signaling

Which of the following is NOT a microscopic characteristic of tumor cells?
TLS Online TPP Program

#Question id: 2723

#Unit 2. Cellular Organization

With respect to the solenoid model of nucleosome, which of the following is true?
TLS Online TPP Program

#Question id: 4996

#Unit 11. Evolution and Behavior

An explanation for the evolution of insect wings suggests that wings began as lateral extensions of the body that were used as heat dissipaters for thermoregulation. When they had become sufficiently large, these extensions became useful for gliding through the air, and selection later refined them as flight-producing wings. If this hypothesis is correct, insect wings could best be described as
TLS Online TPP Program

#Question id: 5545

#Unit 5. Developmental Biology

The placenta functions as a(n):
TLS Online TPP Program

#Question id: 14967

#Unit 2. Cellular Organization

Clinically, the cell wall is important because it contributes to the ability of some species to cause disease and is the site of action of some antibiotics. In addition, the chemical composition of the cell wall is used