Upwelling zones (where nutrients reach the surface from deeper waters) and continental shelf areas (where bottom sediments in shallow water rapidly exchange nutrients with surface waters) support greater production.

Freshwater production is highest in rivers, shallow lakes, and ponds, where nutrients are most abundant, and lowest in clear streams and deep lakes.

TLS Online TPP Program

#Id: 8436

#Unit 10. Ecological Principles

Grime’s triangle

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#Id: 9848

#Unit 6. System Physiology – Plant

Blue light stimulates the accumulation of anthocyanin (A) and the inhibition of stem elongation by cryptochrome

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#Id: 1593

#Unit 5. Developmental Biology

Hensen’s node is the functional equivalent of the organizer (dorsal lip of the amphibian blastopore)

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#Id: 2247

#Unit 11. Evolution and Behavior

People who are Δ32 homozygous for the deletion are highly resistant to HIV, while heterozygotes are partly resistant.

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#Id: 8750

#Unit 1. Molecules and their Interaction Relevant to Biology

The lack of an ordered structure can facilitate a kind of functional promiscuity, allowing one protein to interact with multiple partners. Some intrinsically disordered proteins act to inhibit the action of other proteins by an unusual mechanism: wrapping around their protein targets.