Seven Life Processes Physiology Biology FuseSchool

look at this fish swimming in the sea or this up tree what about bacteria or even bumblebee don't worry won't rhyme for the entire video but the amazing diversity of Life on planet Earth is truly staggering there are estimated to be between 5 to 10 million different living species on the earth and that's excluding all the bacteria as they are really hard to count so what do they all have in common what makes something living thing well scientists have found that all living things from the simple little Amia all the way up to big tall giraffe and everything in between can carry out these seven life processes the first is movement some organisms move very obviously like cheetah the fastest animal on the planet which can run at 60 mes per hour other organisms like plants move much more slowly but all living things do move the second is respiration respiration is process that occurs in cells to release energy that is stored in food organisms have evolved slightly different ways of doing this but all living things need energy to live and this is how they release it the third is sensitivity in order for living organism to survive it needs to be able to sense its environment it could be to find food or shelter or avoid Predators but all living things have evolved at least simple sensors to do this humans have the five senses of touch taste sight sound and smell which gives us very clear understanding of our environment the fourth process is growth all organisms grow in basic organisms the cell gets little bit bigger in more complex organisms you get more and more cells animals tend to stop growing in adulthood but some plants can continue growing and get very big in fact the biggest living organism on the planet isn't plant it's fungus it's type of Honey fungus growing in Oregon and is thought to be 2.4 mil across fifth is reproduction some organisms can reproduce on their own such as bacteria this is called asexual reproduction others carry out sexual reproduction using male and female of the species bacteria can reproduce every 20 minutes then African elephant takes 22 months to carry its baby excretion is the sixth process this is not the same as pooing which is actually called digestion but excretion means getting rid of waste from chemical reactions in the organism respiration for example makes waste products and each organism needs to get rid of these this is called excretion the final process is nutrition every living organism needs some sort of food plants can make their own food by the process of photosynthesis but all other organisms have to get their food from somewhere else however the process of obtaining food by either way is called nutrition so there you haveit the seven life processes you can remember them easily by learning the phrase Mrs Gren movement respiration sensitivity growth reproduction excretion and nutrition