Nucleus
The simplest structure shared among all living organisms is the cell. Cells are the basic building blocks of life and are responsible for carrying out all the functions necessary for an organism to survive and reproduce.
a characteristic---- usually a homologous structure----shared by all organisms in a group
These physical features are known as homologous structures. They suggest a common evolutionary history among organisms and may have originated from the same structure in a shared ancestor. Despite potentially serving different functions in mature organisms, their structural similarity points to a shared genetic relationship.
They have genetic material and they reproduce.
The characteristic shared by living systems where all organisms respond to stimuli is called "irritability" or "responsiveness." This property allows organisms to detect and react to changes in their environment, which is crucial for survival. This response can manifest in various forms, such as movement, growth, or physiological changes, enabling organisms to adapt to their surroundings.
The simplest structure shared among all living organisms is the cell. Cells are the basic building blocks of life and are responsible for carrying out all the functions necessary for an organism to survive and reproduce.
They make their own energy.
a characteristic---- usually a homologous structure----shared by all organisms in a group
These physical features are known as homologous structures. They suggest a common evolutionary history among organisms and may have originated from the same structure in a shared ancestor. Despite potentially serving different functions in mature organisms, their structural similarity points to a shared genetic relationship.
They have genetic material and they reproduce.
They all have a body structure.
The classification of living organisms is known as taxonomy. It involves categorizing organisms into hierarchical groups based on shared characteristics.
taxonomy
bio- = living organisms bio-logy = study of living organisms
The characteristic shared by living systems where all organisms respond to stimuli is called "irritability" or "responsiveness." This property allows organisms to detect and react to changes in their environment, which is crucial for survival. This response can manifest in various forms, such as movement, growth, or physiological changes, enabling organisms to adapt to their surroundings.
A homologous structure that is shared by all organisms in a group is a characteristic that has evolved from a common ancestor. For example, the forelimbs of mammals, birds, reptiles, and amphibians exhibit similar bone structures despite serving different functions, indicating their evolutionary relationship. These shared anatomical features provide evidence for common ancestry and help classify organisms within the same evolutionary lineage.
All domains of living organisms—Bacteria, Archaea, and Eukarya—share a common cellular structure known as the cell membrane, which consists of a phospholipid bilayer that regulates the movement of substances in and out of the cell. Additionally, all organisms contain ribosomes, which are essential for protein synthesis, and genetic material (DNA or RNA) that carries the information necessary for growth, reproduction, and function. These fundamental features highlight the shared characteristics of life across different domains.