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Panama has acted as a geographical barrier, separating two populations of ancestral shrimp - one in the Pacific and one in the Caribbean Sea.Random mutations will occur in both populations.Natural selecti...

Chlorine’s outer electrons / shell closer to the nucleus so the chlorine nucleus has greater attraction for outer electrons / shell and therefore chlorine gains an electron more easily.

Damage to the amygdala can cause an inability to control aggression. Tim may have damage to his amygdala caused by a tumour that is pressing against it thus causing him to become aggressive.

Supply side policies focus on the production side of the economy which can be manipulated by taxes, regulatory policy or monetary policy (interest rates/ supply of money).
These policies are importa...

To form the imperfect tense in Spanish, first you take the infinitive of the verb, then you chop off the -ar/-er/-ir to be left with the stem. eg. jugar -> jugar -> jug.....