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MRS GREN (M (Movemnt (Although some organisms can't really move they…
MRS GREN
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Movemnt
Although some organisms can't really move they will always have some level of movement, it could be their entire body or particular body parts.
Movement is important for organisms because it improves the chances of catching food or avoiding capture for both predator and prey.
Organisms that aren’t able to move freely will usually have strong defences against predators. (e.g a cactus)
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Sensitivity
Sensitivity refers to the way organisms respond to their environment. All organisms are able to sense changes in their environment and will respond accordingly.
For example, barnacles will close their shells during low tide to prevent themselves from drying out, squid release ink when they feel threatened, and deer run away when they are startled by a noise.
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Growth
Growth is an irreversible change in mass. It is possible because respiration provides excess energy for organisms to use to grow.
Excess energy can be used for the production of new cells and tissue which inevitably leads to the growth of an individual.
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Nutrition
In order for organisms to survive they require food for energy and nutrients. Energy and nutrients are essential for growth, survival and reproduction.
Many living things, such as animals, acquire nutrients by eating other organisms.
Other organisms, such as plants, get food and nutrients from their environment
Plants use energy from the sun to convert carbon dioxide in the atmosphere into sugars and their roots absorb water and nutrients from the soil.
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Respiration
Respiration is the conversion of energy from carbohydrates and fats into energy that can be used by cells.
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