If a fair die is rolled 4 times, then what is the probability that there are exactly 2 sixes ?

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#Question id: 325

#Unit 1. Molecules and their Interaction Relevant to Biology

A true statement about hydrophobic interactions is that they:

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#Question id: 22952

#Unit 5. Developmental Biology

Many of the genes that determine floral organ identity are MADS box genes, Except 

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#Question id: 4655

#Unit 11. Evolution and Behavior

Over evolutionary time, many cave-dwelling organisms have lost their eyes. Tapeworms have lost their digestive systems. Whales have lost their hind limbs. How can natural selection account for these losses?

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#Question id: 11334

#Unit 10. Ecological Principles

To qualify as a biodiversity hotspot, a region must meet following two strict criteria

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#Question id: 9245

#Unit 9. Diversity of Life Forms

One characteristic that distinguishes a population in an extinction vortex from most other populations is that