Que-: what includes external stimuli ?
Que-: what is regeneration?
Que -: Define Metabolism and it's Two Categories also !
Que -: some characteristics of living organisms !
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Answers
q1 An organism receives many stimuli from its environment is external stimuli
Two external stimuli are:
The touching of hot vessel.
➡ The touching of current carrying wire.
q2
Regeneration is one of the processes in which if an organism is cut into several pieces, each of its parts regrows to the original state. This process is carried out by specialized cells called stem cells. It takes place in organisms that have a very simple structure with very few specialized cells.
Q3
Metabolism is the total amount of the biochemical reactions involved in maintaining the living condition of the cells in an organism. All living organisms require energy for different essential processes and for producing new organic substances.
The metabolic processes help in growth and reproduction and help in maintaining the structures of living organisms. The organisms respond to the surrounding environment due to metabolic activities. All the chemical reactions occurring in the living organisms from digestion to transportation of substances from cell to cell require energy.
There are two types of metabolic process:
Catabolism
Anabolism
q4
Characteristics of Living things
Living things are made up of a cell or cells.
They obtain and use energy to survive.
A unique ability to reproduce, ability to grow, ability to metabolize, ability to respond to stimuli, ability to adapt to the environment, ability to move and last but not the least an ability to respire.
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