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TLS Online TPP Program

#Question id: 8926

Sponges and cnidarians are among the fossilized animals found in both the Ediacara Hills and the Burgess Shale from the Rocky Mountains of British Colombia. This observation requires that

#Unit 9. Diversity of Life Forms
  1. ancestral sponges and cnidarians had formerly been terrestrial animals.
  2. North America and Australia were united to each other about 550 million years ago (mya).
  3. land that now comprises the Ediacara Hills and the Rocky Mountains was underwater about 550 million years ago.
  4. only sponges and cnidarians existed at the time the sediments were deposited.
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TLS Online TPP Program

#Question id: 23845

#Unit 2. Cellular Organization

Which type of molecules bind to myosin head during the skeletal muscle contraction?
TLS Online TPP Program

#Question id: 24524

#Unit 11. Evolution and Behavior

Which of the following is defined as any consistent difference in fitness among phenotypically different classes of biological entities?
TLS Online TPP Program

#Question id: 922

#Unit 1. Molecules and their Interaction Relevant to Biology

Which compound is an intermediate of the  oxidation of fatty acids?
TLS Online TPP Program

#Question id: 2618

#Unit 2. Cellular Organization

The three genes (lacZ, lacY, and lacA) are transcribed as a single mRNA from the promoter, these genes are expressed at high levels only when
TLS Online TPP Program

#Question id: 12697

#Unit 7. System Physiology – Animal

The following test results were obtained: urine flow rate = 2.0 ml/min; urine inulin concentration = 60 mg/ml; plasma inulin concentration = 2 mg/ml; urine potassium concentration = 20 μmol/ml; plasma potassium concentration = 4.0 μmol/ml; urine osmolarity = 150 mOsm/L; and plasma osmolarity = 300 mOsm/L. What is the approximate GFR?