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TLS Online TPP Program

#Question id: 8935

What may have occurred to prevent species that are of the same grade from also belonging to the same clade?

#Unit 9. Diversity of Life Forms
  1. similar structures arising independently in different lineages
  2. convergent evolution among different lineages
  3. adaptation by different lineages to the same selective pressures
  4. A, B, and C
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TLS Online TPP Program

#Question id: 11298

#Unit 10. Ecological Principles

A pyramid of numbers shows _____________.
TLS Online TPP Program

#Question id: 1007

#Unit 1. Molecules and their Interaction Relevant to Biology

Which is the correct order for the synthesis of CTP?
TLS Online TPP Program

#Question id: 2658

#Unit 2. Cellular Organization

This condition in lac operon facilitates the condition of lac genes being transcribed at high levels
TLS Online TPP Program

#Question id: 4912

#Unit 8. Inheritance Biology

Correns described that the inheritance of variegated color on the leaves of certain plants was determined by the maternal parent only. What phenomenon does this describe?
TLS Online TPP Program

#Question id: 19101

#Unit 4. Cell Communication and Cell Signaling

which are specialized bacteria that are obligate parasites of the phloem tissue?