Of the following ecosystem types, which have been impacted the most by humans?

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#Question id: 27968

#Unit 1. Molecules and their Interaction Relevant to Biology

As intermediates of the citric acid cycle are removed to serve as biosynthetic precursors, they are replenished by

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#Question id: 10806

#Unit 6. System Physiology – Plant

HCN is a fast-acting toxin that inhibits

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#Question id: 7186

#Unit 5. Developmental Biology

In dictyostelium stalk and spore cell maturation depends on cAMP level. Which of the following statement is incorrect regarding to this process?

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#Question id: 19793

#Unit 12. Applied Biology

The specificity of cry protein seems to be lost upon reduction of which amino acid residues of the protoxin, but can be restored by reoxidation of these residues?

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#Question id: 13154

#Unit 2. Cellular Organization

In starving cells, however, such degradation would deplete essential enzymes and regulatory proteins. Lysosomes therefore also have a selective pathway, which is activated only after a prolonged fast, that imports and degrades cytosolic proteins containing the pentapeptide  , the sequence is