1. the juxtaglomerular cells of kidney produce a peptide hormone called erythropoietin 2. erythropoietin stimulates formation of rbc. regarding 1 and 2 :

Erythropoietin is produced by interstitial fibroblasts in the kidney in close association with the peritubular capillary and proximal convoluted tubule. It is also produced in perisinusoidal cells in the liver.

The juxtaglomerular cells of kidney produce a peptide hormone called erythropoietin which stimulates erythropoiesis (formation of RBC).

jaan

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the feature separates hominids from other primates is bipedalism.

bipedalism is s form of terrestrial locomotion in an organism moves with the of its two rear legs.

hominids belong to the family hominidae, that includes recent humans together with extinct ancestral and related forms and in some classification the great apes.