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TLS Online TPP Program

#Question id: 13212

The water at the top of a tree develops a large tension (a negative hydrostatic pressure), and this tension pulls water through the xylem this mechanism is called ,

#XL - R Botany
  1. cohesion–tension theory of sap ascent
  2. Gravitational potential (ψg)
  3. Leaf air-water vapour concentration
  4. Transpiration
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TLS Online TPP Program

#Question id: 8291

#XL - S Microbiology

Which of the following pairs are the best examples of homologous structures?
TLS Online TPP Program

#Question id: 437

#XL - R Botany

Which thermodynamic quantity is used to determine if a reaction in a cell is spontaneous?
TLS Online TPP Program

#Question id: 5571

#XL - T Zoology

Environmental cues that influence the timing of reproduction generally do so by ________.
TLS Online TPP Program

#Question id: 8929

#XL - R Botany

An obsolete taxon, the ʺRadiata,ʺ included all phyla whose adults had true radial symmetry. Today, the ʺRadiataʺ is more correctly considered to be
1. a clade.
2. a grade.
3. monophyletic.
4. paraphyletic.
5. polyphyletic.
TLS Online TPP Program

#Question id: 3853

#XL - Q Biochemistry

In E. coli, promoter sequences are located at which of the following position(s) on the template strand?