Write answers the following questions.
(a) What are the levels of organisation in living things?
(b) What level or organisation do we see in the euglena?
(c) How does tissue level organisation occur?
(d) How does organisation occur at the organ level?
(e) Name the organ systems you know.
Write answers the following questions.
(a) What are the levels of organisation in living things?
(b) What level or organisation do we see in the euglena?
(c) How does tissue level organisation occur?
(d) How does organisation occur at the organ level?
(e) Name the organ systems you know.
(a) Cell level, tissue level, organ level and organ system level are the different levels of organisation found in living organisms.
(b) Euglena is a single cellular organism in which a single cell performs all the functions of life, so it has the cellular level of organisation.
(c) When a single cell is not able to perform all the necessary functions, many cells come together to form tissues and this gives rise to the tissue level of the organisation. These group of cells function together to perform various life processes.
(d) Many types of tissues together form an organ. Various organs perform different functions in a living organism. When different types of organs are responsible for carrying out all the life processes in a living organism, it constitutes an organ level of organisation.
(e) The different organ systems in a living organism are the digestive system, respiratory system, circulatory system, excretory system and nervous system.
(a) Cell level, tissue level, organ level and organ system level are the different levels of organisation found in living organisms.
(b) Euglena is a single cellular organism in which a single cell performs all the functions of life, so it has the cellular level of organisation.
(c) When a single cell is not able to perform all the necessary functions, many cells come together to form tissues and this gives rise to the tissue level of the organisation. These group of cells function together to perform various life processes.
(d) Many types of tissues together form an organ. Various organs perform different functions in a living organism. When different types of organs are responsible for carrying out all the life processes in a living organism, it constitutes an organ level of organisation.
(e) The different organ systems in a living organism are the digestive system, respiratory system, circulatory system, excretory system and nervous system.
