The Hox genes came to regulate each of the following in what sequence, from earliest to most recent?

1. identity and position of paired appendages in protostome embryos

2. formation of water channels in sponges

3. anterior-posterior orientation of segments in protostome embryos

4. positioning of tentacles in cnidarians

5. anterior-posterior orientation in vertebrate embryos

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#Question id: 11092

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

Which statement is the most accurate definition of external respiration?

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#Question id: 20538

#SCPH06 I Botany

Aromatic hydrocarbons including benzene, toluene, ethylbenzene and xylene collectively referred as BTEX compounds. Which of them is considered as carcinogenic?

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#Question id: 4580

#SCPH06 I Botany

In modern terminology, diversity is understood to be a result of genetic variation. Sources of variation for evolution include all of the following except

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#Question id: 3459

#SCPH28 | Zoology

A vampire bat sharing blood with another bat that is not its kin is an example of ________.

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#Question id: 15925

#SCPH05 I Biotechnology

What is a cell line?