From four corners of a square sheet of side 4 cm, four pieces,each in the shape of arc of a circle with radius 2 cm, are cut out.The area of the remaining portion is :

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#Question id: 31152

#Unit 2. Cellular Organization

Incubation of cell extracts with a nonhydrolyzable derivative of GTP for dynamin in the pinching off of vesicles during endocytosis, resulting:

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#Question id: 10846

#Unit 10. Ecological Principles

Many birds readily feed upon periodic cicadas when they emerge as adults. This interaction between birds and cicadas represents an example of

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#Question id: 11776

#Unit 10. Ecological Principles

According to optimal foraging theory, longer travel time

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#Question id: 23571

#Unit 8. Inheritance Biology

In an individual heterozygous, the abnormal chromosome loops out during chromosome pairing in prophase I, in which condition?

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#Question id: 28252

#Unit 5. Developmental Biology

The force for sperm propulsion is provided by a protein, the protein is