In the presence of a fixed concentration of a competitive inhibitor, which of the following would best characterize an enzyme-catalyzed reaction when the concentration of the substrate is increased?

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#Question id: 12095

#Unit 10. Ecological Principles

It is now thought that the atmosphere of the primitive Earth was composed largely of carbon dioxide, nitrogen, and water vapor. The composition of certain iron-containing minerals suggests that the carbon dioxide began to be replaced by oxygen about 2 billion years ago.   Which of the following is the best explanation for the change in atmospheric composition?

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#Question id: 5845

#Unit 8. Inheritance Biology

Which of the following statements is false?  In vitro, the strand-exchange reaction:

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#Question id: 3408

#Unit 11. Evolution and Behavior

New species originated via punctuated equilibrium having some characterstic feature

a. occur during cladogenesis from ancestral species

b. subpopulation of ancestral species transform in to new species

c. Morphological change is sudden and rapid

d. continuously change in their morphology

which above statement is correct

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#Question id: 1290

#Unit 4. Cell Communication and Cell Signaling

Hydroxyproline is important in the formation of staple collagen polymers within cells. The formation of hydroxyproline requires:

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#Question id: 11956

#Unit 7. System Physiology – Animal

An advantage of a complete digestive system over a gastrovascular cavity is that the complete system ________.