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TLS Online TPP Program

#Question id: 16110

what happens to the arterioles near the surface of the skin when the body temperature rises?

#Unit 7. System Physiology – Animal
  1. they absorb oxygen from the surrounding tissues
  2. they dilate and become wider
  3.  they move nearer the skin surface
  4.  they take in water from the surrounding tissues
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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: 11112

#Unit 7. System Physiology – Animal

The respiratory movement representing the total amount of exchangeable air is the:
TLS Online TPP Program

#Question id: 12642

#Unit 6. System Physiology – Plant

The systemic production of proteinase inhibitors in young tomato plants is triggered by a complex sequence of events such as;
1) Prosystemin is proteolytically processed to produce the short polypeptide called systemin
2) Systemin is then transported out of the wounded leaf via the phloem.
3) systemin is believed to bind to a site on the plasma membrane and initiate the biosynthesis of jasmonic acid
4) Wounded tomato leaves synthesize prosystemin, a large recursor protein
5) Systemin is released from damaged cells into the apoplast
6) Jasmonic acid eventually activates the expression of genes that encode proteinase inhibitors
Arrange the correct sequence of given above following statements ;
TLS Online TPP Program

#Question id: 1209

#Unit 4. Cell Communication and Cell Signaling

The sequence of events that occurs after insulin binds to its receptor tyrosine kinase is:
TLS Online TPP Program

#Question id: 9228

#Unit 9. Diversity of Life Forms

Use the following figure to answer the question


Looking at the figure showing the results of forest fragmentation, what can be said about edge effects?