12 Questions
Why do living organisms need to constantly maintain and repair their structures?
Because their ordered nature is prone to breaking down due to environmental effects
What is the primary source of energy for the maintenance processes in living organisms?
Food sources from outside the body
What is the purpose of the process of respiration in living organisms?
To acquire oxygen from outside the body for cellular needs
Why is visible movement not a sufficient characteristic to define life?
Because it does not account for molecular movements
What type of chemical reactions are often used to break down molecules in living organisms?
Oxidising-reducing reactions
What is the primary reason for the controversy about whether viruses are truly alive?
Their lack of molecular movement until they infect cells
Why do living organisms require different nutritional processes?
Because they require different types of carbon-based molecules
Why do we tend to associate growth or movement with living beings?
Because it is a common observable evidence for life
What is the term used to describe the processes that perform the maintenance job in living organisms?
Life processes
What do professional biologists consider necessary for life?
Invisible molecular movement
What can be said about plants that are not visibly growing?
They are still alive
What is the characteristic that can be observed in dogs, cows, and men that suggests they are alive?
Their ability to breathe
Explore the characteristics that distinguish living beings from non-living things. From breathing to growth, learn how to identify signs of life in different organisms, including plants and animals.
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