Edexcel A level Biology Questions and answered 100% Well
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Course
Edexcel A level Biology
Institution
Edexcel A Level Biology
Edexcel A level Biology
Molecular phylogeny - Answer-It compares the structure of a particular molecule from different organisms to discover their degree of evolutionary relation.
Somatic cell - Answer-A cell in an organism which isn't a gamete.
DNA - Answer-Deoxyribose nucleic acid. Car...
Molecular phylogeny - Answer-It compares the structure of a particular molecule from
different organisms to discover their degree of evolutionary relation.
Somatic cell - Answer-A cell in an organism which isn't a gamete.
DNA - Answer-Deoxyribose nucleic acid. Carries the genetic information for cells and
some viruses.
mRNA - Answer-Messenger ribose nucleic acid (single stranded). The product of
transcription.
Speciation - Answer-The process through which a species is created
Sympatric - Answer-Due to reproductive isolation.
Allopatric - Answer-Due to geographical isolation
Niche - Answer-The role an an organism in an ecosystem.
Habitat - Answer-The natural environment in which a species lives.
Biodiversity - Answer-The diversity of plant and animal life in a particular habitat
Ecosystem - Answer-Organisms and their interactions with biotic and abiotic factors.
Carpentered world hypothesis - Answer-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 - Answer-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 - Answer-These are synapses that make it less likely that an action
potential will happen in the post synaptic membrane.
Auxins - Answer-Plant hormones that stimulate growth by causing cells to elongate.
Indoleacetic acid (IAA) - Answer-A specific type of auxin.
Summation - Answer-When the effect of multiple impulses adds up.
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