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TLS Online TPP Program

#Question id: 12016

The ability of a desert rodent's kidneys to form highly concentrated urine is largely attributable to

#Unit 10. Ecological Principles
  1. A high glomerular filtration rate
  2. The production of a very salty ultrafiltrate in the glomerulus
  3. The ability of cells lining the proximal convoluted tubule to absorb water
  4. Long loops of Henle that pass-through tissues of increasing salt concentrations
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TLS Online TPP Program

#Question id: 12543

#Unit 10. Ecological Principles

Use Figure to answer the following questions. Examine this food web for a particular terrestrial ecosystem. Each letter is a species. The arrows represent energy flow.

Which species is most likely an omnivore?
TLS Online TPP Program

#Question id: 4360

#Unit 3. Fundamental Processes

Which of the following functions are characteristic of general transcription factors in eukaryotes?
TLS Online TPP Program

#Question id: 5559

#Unit 5. Developmental Biology

During fertilization, the acrosomal contents ________.
TLS Online TPP Program

#Question id: 416

#Unit 1. Molecules and their Interaction Relevant to Biology

The immediate precursors of DNA and RNA synthesis in the cell all contain:
TLS Online TPP Program

#Question id: 4470

#Unit 3. Fundamental Processes

Most recent experiments suggest that the last of these is at least an important part of the story and that the conformational change causes the elongating complex to stall, with dissociation following more slowly- this conformational change caused by,