Main organs Reproduction Food and digestion Blood circulation Breathing and the lungs The Skeleton and movement Keeping healthy Study Guide to the Systems of the Body This is an external link to a large number of resources about the Human … Continue reading →
Humans, along with all other mammals, reproduce by sexual reproduction. This means that an egg (from the mother) needs to be fertilized (that means join up with)a single sperm (from the father). Fertilization is internal which means that the egg … Continue reading →
The purpose of the lungs is two-fold: to transfer oxygen to the blood and to remove carbon dioxide from the blood. The tiny air sacs give the lungs a large surface area which makes this transfer of gases more efficient. … Continue reading →
Digestion, Food and diet: what happens during exercise Heart Disease Food enters the body at the mouth The food that we eat contains lots of nutrients. Nutrients are useful chemicals needed by our body. In order to … Continue reading →
We can place all things into three groups: Alive (living) eg Cow, Grass, mouse, fly Used to Be alive eg wood, fossil, paper Non-living eg stone, glass, metal Living things are able to do several things a non-living thing may … Continue reading →
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