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: 98

#SCPH06 I Botany

The elasticity and resistance to compression of connective tissue is due to

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#Question id: 27808

#Research Methodology

The objective of a research report  are:

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#Question id: 14132

#SCPH05 I Biotechnology

The most widely used program for multiple sequence alignment is

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#Question id: 14771

#SCPH06 I Botany

What is the chance of throwing a number greater than 4 with an ordinary die whose faces are numbered from 1 to 6 ?

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#Question id: 3892

#SCPH01 Biochemistry

The DNA binding motif for many prokaryotic regulatory proteins, such as the lac repressor, is: