A complex animal comes with a fixed number of almost all of its organs: three hearts if it is an octopus or four sub-stomachs if it is a cow. We unpack the science behind these specialised parts https://t.co/jdbjBKWy86 ...

Body Structure - The human body is composed of specialized parts called organs [1] - Organs are sophisticated structures that perform specific functions [1] General Information - This document serves as a biology primer [1]

Overview - Organs are structures where different cell types coordinate to perform specific functions [1] Biology - Biology primer provides information on how organs function [1]

Biology Primer Focus - Complex animals develop sophisticated organs as functional entities [1] - The article explains how these vital structures work [1] Resource Information - The primer is available at the provided URL: https://t.co/w2GikGti23 [1]