Which event is nearest in time to the end of the period known as snowball Earth?

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#Question id: 19891

#Unit 12. Applied Biology

Which one of the following sensors uses light?

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#Question id: 12527

#Unit 6. System Physiology – Plant

Which of the following is the incorrect prediction about ABA translocation in vascular tissue by both the xylem and the phloem?

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#Question id: 4567

#Unit 11. Evolution and Behavior

Charles Darwin was the first person to propose

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#Question id: 5266

#Unit 8. Inheritance Biology

In conjugation the donor cell is recognized by the presence of

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#Question id: 10977

#Unit 7. System Physiology – Animal

A 60-year-old man’s EKG shows that he has an R-R interval of 0.55 sec. Which of the following best explains his condition?