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TLS Online TPP Program

#Question id: 9579

Allen’s rule states that,

#XL - T Zoology
  1. among closely related endothermic (warm-blooded) vertebrates, those living in colder environments tend to have shorter appendages than those living in warmer environments.
  2. High temperatures are also limiting for many plants and animals
  3. Many organisms cope with heat stress by producing increased amounts of heat shock proteins (HSPs).
  4. Those species in colder, arctic environments have shorter ears than those in temperate or hot desert environments
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TLS Online TPP Program

#Question id: 2103

#XL - S Microbiology

When a plant cell, such as one from a tulip leaf, is submerged in a hypertonic solution, what is likely to occur?
TLS Online TPP Program

#Question id: 11581

#XL - T Zoology

DES is called an "endocrine disrupting chemical" because it interferes with the endocrine secretions of the ________.
TLS Online TPP Program

#Question id: 10885

#XL - R Botany

In a field experiment, autotrophs are provided a 14C-labelled carbon compound for photosynthesis. Radioactivity (14C) levels were then monitored at regular intervals in all the trophic levels. In which ecosystem is the radioactivity likely to be detected in longer time at the higher trophic level?
TLS Online TPP Program

#Question id: 14883

#XL - S Microbiology

Where is double negative selection is found during T-cell formation?
TLS Online TPP Program

#Question id: 3615

#XL - T Zoology

What are alleles?