levels of organitation of the human body

undertanding ourbody

Screenshot

the excretory sistem

the kidneys

reproductive system

reproductive system that produces ova

reproductive system that produces spermatozoa

in the processof fertilisation,bhoth types of reproductive cells join to form a zygote.Pregnancy begins when the zygote implants in the uterus.It develops for nine months and then a baby is born.Labour is the process of childbirth

diptongos e hiatos

levels of organisation

diptongos e hiatos

diptongos e hiatos

parts of the circulatory sistem

blood is made up of plasma and three types of blood cells:red blood cells,white blood cells and pletelets.

the eart

the blood vessels are tubes that transport blood around the body.There are three types:arteries,veins and capillares

systems involved in nutrition

circulatory system

respiratory system

excretory system

digestive system

digestive sysem

Respiration,step by step

inhalation

gas exchange

osygem from the air reaches the lungs

Esto es un párrafo listo para contener creatividad, experiencias e historias geniales.

the diaphragm contacs anddescens .And the langs fill with air

the oxigen passes from the alveoli into the blood

carbon dioxide passes from the blood to the alveoli

parts of the respiratori system

The olveoli are small sacs with ting blood vessels around them.Blood circulates continuously through them

the excretory system

Press before

https://www.youtube.com/watch?v=dZREDWD_5bA

levels of organisation

respiration,step,by step