What happened is jealousy can ruin a family and everything,a brother was jealous of his own brother because he was powerful,caring and every body loved him, so he tried to do anything to kill him, and he lied to him and told him your son is in trouble and it end up having him killed and he told everybody his son killed him.
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i belive that that would be called neurotransmitters
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Human heart is myogenic becoz it have the tendency to generate impulse by itself. The upper right auricle wall of heart has sino atrium node or SN node which helps in generation of impulse without any external stimulus.
Gametes have a single copy of an allele for each gene while zygotes have two copies for each gene.
