Gastrulation in sea urchins, Drosophila, and Xenopus all begin with a change in cell shape, in which the apical surface of an epithelial sheet contracts. This process is called:

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#Question id: 9609

#XL - S Microbiology

Dozens of potato varieties exist, differing from each other in potato-tuber size, skin color, flesh color, and shape. One might construct a classification of potatoes based on these morphological traits. Which of these criticisms of such a classification scheme is most likely to come from an adherent of the phylocode method of classification?

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#Question id: 19654

#XL - P Chemistry

What is the class of the substitution product of LiAlH4 and an alkyl halide reaction?

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#Question id: 5746

#XL - S Microbiology

A base change resulting in a codon specifying an amino acid which is different than in the wild-type polypeptide

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#Question id: 10585

#XL - T Zoology

Per capita birth rate of this population is b and per capita death rate of population is d, N is a population size. What is yield of population per unit time as?

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#Question id: 11190

#XL - T Zoology

For a neuron with an initial membrane potential at -70 mV, an increase in the movement of potassium ions out of that neuron's cytoplasm would result in the ________.