Which structure below indicates the proper hydrogen-bonding pattern between amino acids in an α-helix? (Dashed lines represent the hydrogen bonds.)

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#Question id: 24161

#General Aptitude

Mathematics allows us to expand our consciousness. Mathematics tells us about economic trends, patterns of disease, and the growth of populations. Math is good at exposing the truth, but it can also perpetuate misunderstandings and untruths. Figures have the power to mislead people.

This paragraph best supports the statement that

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#Question id: 4588

#Unit 11. Evolution and Behavior

 Which statement illustrates the connection between natural selection and overreproduction of a population?

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#Question id: 4673

#Unit 3. Fundamental Processes

Lysogenic growth proceeds when

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#Question id: 19695

#Unit 13. Methods in Biology

Which of the following leads are used to record ECG by using two active electrodes?

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#Question id: 13020

#Unit 10. Ecological Principles

Experts in deer ecology generally agree that population sizes of deer that live in temperate climates are limited by winter snow. The deer congregate in ?yarding? areas under evergreen trees because venturing out to feed in winter is energetically too expensive when snowfall depths accumulate to above 40 cm. Deer often stay yarded until the spring thaw. Snow depth over 40 inches for more than 60 days results in high mortality due to starvation.  This observation best illustrates which of the following principles about factors that limit distribution of organisms?