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: 27758

#Research Methodology

_______ as a testable statement of a potential relationship between two or more variables

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#Question id: 2073

#I Life Science/ Life Sciences Group – I-V

The phosphate transport system in bacteria imports phosphate into the cell even when the concentration of phosphate outside the cell is much lower than the cytoplasmic phosphate concentration. Phosphate import depends on a pH gradient across the membrane—more acidic outside the cell than inside the cell. In this bacterial cell, phosphate transport is an example of:

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#Question id: 16312

#I Life Science/ Life Sciences Group – I-V

Any situation that is out of the ordinary, known as:

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#Question id: 1295

#SCPH05 I Biotechnology

What signal is released by endothelial cells to recruit circulating leukocytes?

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#Question id: 763

#SCPH28 | Zoology

Which of the following could be an effect of miRNA regulation?