What is thought to be the correct sequence of these events, from earliest to most recent, in the evolution of life on Earth?

1.  origin of mitochondria

2.  origin of multicellular eukaryotes

3.  origin of chloroplasts

4.  origin of cyanobacteria

5.  origin of fungal-plant symbioses

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#Question id: 16091

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

The most significant heat source in the body is:

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#Question id: 10233

#SCPH06 I Botany

Which of the following statements is the most appropriate define character displacement?

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#Question id: 15604

#SCPH05 I Biotechnology

The bacteria which cause septicaemia are fast becoming resistant to the antibiotics used for controlling them. Which one of the following explanations fits best?

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#Question id: 2653

#SCPH06 I Botany

The sequence of the structural genes in the lac operon is

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#Question id: 4964

#SCPH28 | Zoology

Which of the following statements provides the strongest evidence that prokaryotes evolved before eukaryotes?