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TLS Online TPP Program

#Question id: 334

Which of the following statements about hydrogen bonding is not true?

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. In liquid water, the average water molecule forms hydrogen bonds with three to four other water molecules.

  2. Hydrogen bonds account for the anomalously high boiling point of water.

  3. Individual hydrogen bonds in liquid water exist for many seconds and sometimes for minutes.

  4. The strength of a hydrogen bond depends on the linearity of the three atoms involved in the bond.

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TLS Online TPP Program

#Question id: 5083

#Unit 5. Developmental Biology

Which of the following correctly displays the sequence of developmental milestones?
TLS Online TPP Program

#Question id: 13168

#Unit 10. Ecological Principles

Use the following diagram from the text showing the spread of the cattle egret, Bulbulcus ibis, since its arrival in the New World, to answer the following question.


How would an ecologist likely explain the expansion of the cattle egret?
TLS Online TPP Program

#Question id: 7315

#Unit 5. Developmental Biology

Following pathway represents apoptosis in drosophila. Identify the proteins A-D sequentially.
TLS Online TPP Program

#Question id: 11001

#Unit 7. System Physiology – Animal

In which phase of the ventricular muscle action potential is the potassium permeability the highest?
TLS Online TPP Program

#Question id: 3612

#Unit 8. Inheritance Biology

Multiple alleles control inheritance of