WHY HUMAN ARE COMPLEX ORGANISM

HUMAN ARE COMPLEX ORGANISM WHAT IS THE PROOF

HUMAN ARE COMPLEX ORGANISMS THAT MADE UP OF MILLION INDIVIDUAL SYSTEMS.SOME OF THE MAJOR SYSTEMS ARE THE BLOOD CIRCULATION, THE SKELETAL SYSTEM, THE DIGESTIVE SYSTEM, THE NERVOUS SYSTEM AND THE RESPIRATORY SYSTEM.THE HUMAN BODY IS A COMPLEX SYSTEM OF CELLS, MOST OF WHICH ARE GROUPED INTO ORGAN SYSTEM THAT HAVE SPECIALISED FUNCTIONS. THESE SYSTEMS CAN BEST BE UNDERSTOOD IN TERMS OF THE ESSENTIAL FUNCTIONS THEY SERVE; DERIVING ENERGY FROM FOOD, PROTECTION AGAINST INJURY, INTERNAL COORDINATION AND REPRODUCTION.

Human are unique among earths life forms as they.have language and thought have a better developed brain than other life forms.are able to create and learn from experience.are endowed with intelligence which enables them to think and reason rationally and to differentiate right from wrong.Cell in our body have different sizes and shapes and carry out various functions.The process in which each type of cell is specialized to perform a specific functions is know as division of labor.

are able to create and learn from experience.

have language and thought

have a better developed brain than other life forms

are endowed with intelligence which enables them to think and reason rationally and to differentiate right from wrong.

CELL ORGANISATIONCELL THE CELL IS THE SMALLEST UNIT OF LIFE IN OUR BODIESTISSUE A GROUP OF SPECIALISED CELLS, WITH THE SAME FUNCTION.ORGAN TWO OR MORE TISSUES CARRYING OUT THE SAME FUNCTION.SYSTEM TWO OR MORE ORGANS CARRYING OUT THE SAME FUNCTION.

TYPES OF SIMPLE CELLS IN HUMAN BODY.EPITHELIUM CELLSNERVE CELLS (NEURONES)SPERMSEGG CELL (OVUM)RED BLOOD CELLTYPES OF SPECIALIASED CELLS. STRUCTUREFUNCTIONS epithelial cells #small and fit well together #can have hair like structures called cilia growing out from them.#cover the surface of the body line cavities and protect surfaces of organs#used in absorption and excretion of substances. nerve cell #very long and thread like#detect stimuli from the surrounding environment #transmit electrical signals to all parts of the body. sperms #look like a microscope tadpole #contains genetic information from the father.#fertilizer an egg .Enabling information to be transfer from one generation to the next egg cell (ovum) #a large spherical cell#contains genetic information from the mother.#after fertilizer by a sperm enables genetic information to be paused on from one generation to the next red blood cell cell Biconcave(a dip in the middle of each side.#carry oxygen to all part of body.

TYPES OF SYSTEM IN HUMAN BODY

ORGANS :MOUTH, OESOPHAGUS, LIVER, STOMACH, PANCREAS, LARGE INTESTINE, SMALL INTESTINE RECTUM.FUNCTION: DIGESTIVE SYSTEM CLASSES OF FOOD SO THAT THE NUTRIENTS CAN BE ABSORBED EASILY BY THE BODY.

ORGANS: NOSE, TRACHEA, BRONCHUS AND LUNG.FUNCTION: INHALES OXYGEN AND EXHALE CARBON DIOXIDE.

DIGESTIVE SYSTEM.RESPIRATORY SYSTEM.

ORGANS: HEART, ARTERY AND VEIN.FUNCTION: TRNASPORT OXYGEN AND FOOD TO ALL PART OF THE BODY AND TRANSPORT EXCRETORY PRODUCTS.

ORGANS:BRAIN, SPINAL CORD NERVE.FUNCTION: COORDINATES AND CONTROLS MOST NERVE ACTIVITIES AND RECEIVE EXTERNAL STIMULI AND COORDINATES RESPONSESBLOOD CIRCULATORY SYSTEMNERVOUS SYSTEM

EXCRETORY SYSTEMORGANS:LUNGS , SKIN, KIDNEY AND BLADDER.FUNCTION: REMOVES EXCRETORY PRODUCTS FROM THE BODYLUNGS: REMOVE CARBON DIOXIDE AND WATER VAPOURKIDNEYS: REMOVE UREA , MINERAL SALTS AND WATER.SKIN: REMOVE UREA, MINERAL SALTS AND WATER.

MUSCULAR SYSTEM.ORGANS: MUSCLE.FUNCTIONORGANS:LUNGS , SKIN, KIDNEY AND BLADDER.FUNCTION: REMOVES EXCRETORY PRODUCTS FROM THE BODYLUNGS: REMOVE CARBON DIOXIDE AND WATER VAPOURKIDNEYS: REMOVE UREA , MINERAL SALTS AND WATER.SKIN: REMOVE UREA, MINERAL SALTS AND WATER.

ORGANS: MUSCLE. FUNCTION: ALLOW BODY MOVEMENT.

SKELETAL SYSTEM.ORGANS: SKULL,PECTORAL GIRDLE, RIB BONE, BACKBONE, PELVIC GIRDLE, FEMURFUNCTION:SUPPORTS THE BODY, PROTECT INTERNAL ORGANS AND ENABLES BODY MOVEMENT.

LYMPHATIC SYSTEMFUNCTIONS:RETURN LYMPH TO THE BLOOD STREAM AND PROTECT THE BODY FROM DISEASE, CAUSE ORGANISMS.

ENDOCRINE SYSTEM.ORGANS: PITUITARY GLAND, THYROID GLAND, PANCREAS, ADRENAL GLAND, OVARY, TESTIS.FUNCTION: PRODUCES HORMONES AND COORDINATES AND CONTROLS BODY RESPONSES TO STIMULI AND LIFE PROCESSES SUCH AS REPRODUCTION AND GROWTH. Conclusion HUMAN ARE COMPLEX ORGANISMS BECAUSE HUMAN MADE UP BY A MILLION IDIVIDUAL SYSYTEM. WITH OUT ALL THIS SYSTEM I THINK HUMAN CAN BE COMPLEX ORGANISMS AND HAVE THE SAME LEVEL WITH ANIMALS.LOVE A OUR SELF BECAUSE WITHOUT ALL SYSTEM IN OUR BODY WE CANT MOVE, WALK AND DO THE OTHER ACTIVITY. ESSENTIAL SCIENCE PMR

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