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What is speciation?

Speciation is the EVOLUTION of a NEW SPECIES from an EXHISTING SPECIES. If two populations are seperated so the flow of alleles stops (e.g geographic isolation- a physical barrier that prevents the 2 from br...
KD
Answered by Katie D. • Biology tutor
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What is sex linkage?

Sex linkage is a type of genetic disease, where the gene with the faulty allele is carried on the X chromosome. Women have 2X chromosomes whilst men only have 1. Consequently if the diseased allele is recess...
KD
Answered by Katie D. • Biology tutor
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Define relative atomic mass.

Relative atomic mass is the average mass of an atom of an element, relative to 1/12 the mass of carbon-12.
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Answered by Aisha O. • Chemistry tutor
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Describe and evaluate Piaget’s theory of cognitive development.

Piaget believed that children are not able to undertake certain tasks until they are psychologically mature enough to do so. These developments don’t happen entirely smoothly and there are stages where child...
SW
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Discuss the effectiveness of Offender Profiling

When psychologists use the term Offender Profiling, they are referring to the use of both the Geographical Approach and the Typology Approach in identifying the personality and behavioural characteristics of...
SW
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