The origin of indirect evidence of life, no recognizable fossils except bacteria (microfossils) was during which geological eras?

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#Question id: 381

#1. Molecules and their Interaction Relevant to Biology

Consider an acetate buffer, initially at the same pH as its pKa (4.76). When sodium hydroxide (NaOH) is mixed with this buffer, the:

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#Question id: 10571

#10. Ecological Principles

Uniform spacing patterns in plants such as the creosote bush are most often associated with

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#Question id: 812

#1. Molecules and their Interaction Relevant to Biology

Which of the following is not known to be involved in the process of assisted folding of proteins?

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#Question id: 11021

#7. System Physiology – Animal

A 75-year-old man goes to the hospital emergency department and faints. Five minutes later he is alert. An EKG shows 75 P waves per minute and 35 QRS waves per minute with a normal QRS width. Which of the following is the likely diagnosis?

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#Question id: 4915

#8. Inheritance Biology

When an albino female plant of maize is crossed with normal green male plant, all plants in the progeny are albino because