A healthy, 25-year-old medical student participates in a 10-km charity run for the American Heart Association. Which of the following muscles does the student use (contract) during expiration?

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#Question id: 15388

#Unit 8. Inheritance Biology

What do transduction, transformation, and conjugation have in common?

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#Question id: 5429

#Unit 8. Inheritance Biology

Assume that three loci, each with two alleles (A and a, B and b, C and c), determine the differences in height between two homozygous strains of a plant. These genes are additive and equal in their effects on plant height. One strain (aabbcc) is 10 cm in height. The other strain (AABBCC) is 22 cm in height. The two strains are crossed, and the resulting F1 are interbred to produce 1000 F2 progeny. what is number of F2 progeny having intermediate height?

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#Question id: 33493

#Unit 2. Cellular Organization

The coexistence of multiple alleles at a locus in a population is called as 

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#Question id: 28347

#Unit 5. Developmental Biology

Par-1 protein is responsible for___

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#Question id: 9161

#Unit 9. Diversity of Life Forms

When climbing a mountain, we can observe transitions in biological communities that are analogous to the changes ________.