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Edexcel A level Biology Frequently Most Tested Questions and Verified Accurate Answers

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  • Course
  • Edexcel A level Biology
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  • Edexcel A Level Biology

Molecular phylogeny It compares the structure of a particular molecule from different organisms to discover their degree of evolutionary relation. Somatic cell A cell in an organism which isn't a gamete. DNA Deoxyribose nucleic acid. Carries the genetic information for cells and some viru...

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  • November 19, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Edexcel A level Biology
  • Edexcel A level Biology
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Edexcel A level Biology Frequently Most
Tested Questions and Verified Accurate
Answers
Molecular phylogeny

✓ It compares the structure of a particular molecule from different organisms to discover
their degree of evolutionary relation.



Somatic cell

✓ A cell in an organism which isn't a gamete.



DNA

✓ Deoxyribose nucleic acid. Carries the genetic information for cells and some viruses.



mRNA

✓ Messenger ribose nucleic acid (single stranded). The product of transcription.



Speciation

✓ The process through which a species is created



Sympatric

✓ Due to reproductive isolation.



Allopatric

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✓ Due to geographical isolation



Niche

✓ The role an an organism in an ecosystem.



Habitat

✓ The natural environment in which a species lives.



Biodiversity

✓ The diversity of plant and animal life in a particular habitat



Ecosystem

✓ Organisms and their interactions with biotic and abiotic factors.



Carpentered world hypothesis

✓ People who live in a world with many straight lines and right angles tend to interpret
obtuse and acute angles as right angles.



Muller-Lyer Illusion

✓ An illusion where a man could be pointing at two different objects, but depth cues let us
know it is the object in the foreground he is pointing to.



Inhibitory synapse



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