Topic 1 - Characteristics Of Living Organisms Flashcards
what characteristic do living organisms need?
MRS H GREN
what does MRS H GREN stand for?
m - movement
r - respiration
s - sensitivity
h - homeostasis
g - growth
r - reproduction
e - excretion
n - nutrition
why do organisms need nutrition?
to provide them with energy and the raw materials for growth and repair
what are some examples of nutrients?
protiens, fats, carbohydrates, vitamins and minerals
why do organisms respire?
to release energy from their food
why do organisms excrete their waste?
waste products (eg carbon dioxide and urine) have to be removed
what is sensitivity?
response to surroundings
why do organisms move?
organisms move away from danger and towards things like water and food
what is homeostasis?
controlling internal conditions such as temperature and water content
why do organisms reproduce?
organisms have to produce offspring in order for their children to survive
