TLS Online TPP Program

#Question id: 13231


The transmembrane pathway is the route followed by water in which

#Unit 6. System Physiology – Plant
  1. water moves exclusively through the cell wall without crossing any membranes
  2. water travels from one cell to the next via the plasmodesmata, the entire network of cell cytoplasm interconnected by plasmodesmata
  3. water enters a cell in this pathway by passing a single membrane  for each cell in its path
  4. enters a cell on one side, exits the cell on the other side, enters the next in the series and so on.In this pathway, water crosses at least two membranes for each cell in its path
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TLS Online TPP Program

#Question id: 24644

#Unit 10. Ecological Principles

Which of the following layers is the zone of eluviation or maximum leaching?

TLS Online TPP Program

#Question id: 24643

#Unit 10. Ecological Principles

 Which of the following statements about typical soil horizons is correct?

TLS Online TPP Program

#Question id: 24642

#Unit 10. Ecological Principles

 Which of the following is not the component of Soil?

TLS Online TPP Program

#Question id: 24641

#Unit 10. Ecological Principles

Soil that are said to be humus poor ____A____ and those soil that are said to be humus rich ___ B______.

TLS Online TPP Program

#Question id: 12098

#Unit 10. Ecological Principles

The herbaceous plant Achillea lanulosa is widespread in the Northern Hemisphere. Phenotypic variation in the species has been extensively studied along an altitudinal gradient from sea level to over 3,000 meters. In California there is conspicuous variation in  height; alpine plants are only several centimeters tall  while  those in  the San Joaquin Valley may reach a height of 1.8 meters. Adaptation to different local environments also results in variation in physiological processes such as photosynthetic rate, resistance to cold, and the timing of dormancy.

The morphological variation shown by Achillea lanulosa illustrates

TLS Online TPP Program

#Question id: 12097

#Unit 10. Ecological Principles

The herbaceous plant Achillea lanulosa is widespread in the Northern Hemisphere. Phenotypic variation in the species has been extensively studied along an altitudinal gradient from sea level to over 3,000 meters. In California there is conspicuous variation in  height; alpine plants are only several centimeters tall  while  those in  the San Joaquin Valley may reach a height of 1.8 meters. Adaptation to different local environments also results in variation in physiological processes such as photosynthetic rate, resistance to cold, and the timing of dormancy.


Which of the following methods would be best to determine whether the phenotypic variation in Achillea lanulosa is due to genotypic variation?