Examlex
The text points out that elder caregiving can be physically, financially, and emotionally costly.
Oxygen
A chemical element with symbol O and atomic number 8, essential for most life forms on Earth as a component of water and as a necessary element for cellular respiration.
Biological Classification
The scientific process of grouping and categorizing organisms into a hierarchical system known as taxonomy, based on their physical and genetic similarities and evolutionary relationships.
Species
A category of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.
A-B-O Blood System
A classification system for human blood based on the presence or absence of antigens in red blood cells, instrumental in blood transfusion and organ transplantation practices.
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