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TLS Online TPP Program

#Question id: 8922

Which statement is most consistent with the hypothesis that the Cambrian explosion was caused by the rise of predator-prey relationships?

#Unit 9. Diversity of Life Forms
  1. increased incidence of worm burrows in the fossil record
  2. increased incidence of hard parts in the fossil record
  3. increased incidence of organic material in the fossil record
  4. increased incidence of fern galls in the fossil record
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TLS Online TPP Program

#Question id: 10573

#Unit 10. Ecological Principles

Which of the following was shown continuous iteroparity life history strategy?
TLS Online TPP Program

#Question id: 15671

#Unit 2. Cellular Organization

The lag phase of the bacterial growth curve is marked by
TLS Online TPP Program

#Question id: 6967

#Unit 5. Developmental Biology

Gastrulation in sea urchins, Drosophila, and Xenopus all begin with a change in cell shape, in which the apical surface of an epithelial sheet contracts. This process is called:
TLS Online TPP Program

#Question id: 26469

#Unit 3. Fundamental Processes

RNA proofreading and backtrack in the prokaryotes is done by
TLS Online TPP Program

#Question id: 27554

#Unit 1. Molecules and their Interaction Relevant to Biology

Alanine can be easily mutated to

1. Serine 

2. Cysteine 

3. Aspartate 

4. Lysine