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TLS Online TPP Program

#Question id: 14902

Transpirational water flow in the xylem requires a mechanically strong wall that resists from,

#Unit 6. System Physiology – Plant
  1. collapse in response to the negative pressure in the xylem
  2. the forces generated by turgor pressure
  3. bridge to the plasma membrane
  4. collapse in response to the positive pressure in the xylem
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TLS Online TPP Program

#Question id: 3384

#Unit 11. Evolution and Behavior

In a sample from an African population, the frequency of blood group allele IA, IB and IO were 0.30, 0.20 and 0.50 respectively. What is expected number of homozygous and heterozygous respectively when population size 1200?
TLS Online TPP Program

#Question id: 10635

#Unit 10. Ecological Principles

Three important biological parameters – generation time, per capita growth rate (r) and clutch size are a function of the organism‟s body size. Which of the curves (a) or (b) represents the correct relation of each of the parameters to body size?
TLS Online TPP Program

#Question id: 12157

#Unit 9. Diversity of Life Forms

Which of the following statements concerning protists is false?
TLS Online TPP Program

#Question id: 11178

#Unit 10. Ecological Principles

At low population densities
TLS Online TPP Program

#Question id: 10850

#Unit 10. Ecological Principles

A parasite that resides within its host is a(n)