In ZE a homogeneous buffer system is used over the whole separation time and range so as to ensure a constant pH value.

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#Id: 9574

#Unit 11. Evolution and Behavior

Eon –  The longest portions of geologic time.

Hadeon, Archean, Proterozoic, and Phanerozoic.

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#Id: 3733

#Unit 10. Ecological Principles

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#Id: 8274

#Unit 1. Molecules and their Interaction Relevant to Biology

Two Requirements for Hydrogen Bonding:

First molecules has hydrogen attached to a highly electronegative atom (N, O, F) called as (hydrogen bond donor)

Second molecule has a lone pair of electrons on a small highly electronegative atom (N, O, F) called as (hydrogen bond acceptor)

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#Id: 10098

#Unit 4. Cell Communication and Cell Signaling

Adherens junctions 

Adhesion type- Cell-cell

Principal CAMs- Cadherins

Cytoskeletal attachment- Actin filament

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#Id: 1857

#Unit 3. Fundamental Processes

Constitutive active housekeeping genes and developmentally regulated genes have TATA-less promoters.