Fossil evidence indicates that the following events occurred in what sequence, from earliest to most recent?

1. Protostomes invade terrestrial environments.

2. Cambrian explosion occurs.

3. Deuterostomes invade terrestrial environments.

4. Vertebrates become top predators in the seas.

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#Question id: 7289

#SCPH01 Biochemistry

The following scheme shows the flowering status of a plant species and the photoperiodism. Which of the following conclusions is most appropriate?

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#Question id: 14661

#SCPH05 I Biotechnology

What is a database?

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#Question id: 314

#SCPH28 | Zoology

Which statement explains the cleaning action of soap on greasy dishes?

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#Question id: 2073

#SCPH01 Biochemistry

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: 80

#SCPH05 I Biotechnology

 Examine the Fischer projection below. How is this carbohydrate classified