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TLS Online TPP Program

#Question id: 12344

The concept of punctuated equilibrium refers to

#Unit 10. Ecological Principles
  1. Oscillating ecological successional stages
  2. Ecological succession arrested by sudden environmental changes, e.g., fire
  3. Persistent predator-prey relationships in relatively stable environments
  4. Bursts of speciation followed by relatively unchanging lineages
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TLS Online TPP Program

#Question id: 1269

#Unit 4. Cell Communication and Cell Signaling

Which of the following constituents are not found in most basal laminae?
TLS Online TPP Program

#Question id: 5113

#Unit 5. Developmental Biology

The adult stem cell is housed in and controlled by its own adult stem cell niche. Which one of the following process not occur in niche?
TLS Online TPP Program

#Question id: 27927

#Unit 11. Evolution and Behavior

A functioning duplicate that becomes fixed in a population can meet one of several ultimate fates, except__
TLS Online TPP Program

#Question id: 13138

#Unit 10. Ecological Principles

Life-history characteristics associated with K-selected ordgtanisms include K
TLS Online TPP Program

#Question id: 672

#Unit 1. Molecules and their Interaction Relevant to Biology

An ideal α-helix has a pitch of 0.54 nm and a rise of 0.15 nm. What is the length along the helix axis for a segment of an ideal α-helix that contains 30 amino acids?