Archivo de la categoría: Biology

Ciliated Cell Adaptation: It has a layer of tiny hair called “Cilia” which can move and push mucus from one place to another. The “Mucus” can transport trapped dust and microbes when it is pushed by the cilia. Root Hair Cells … Sigue leyendo →

Potatoe in distilled water: This was the stiffest and least flexible potato because it absorbed water, therefore it swelled and became firm. Natural potato: This potato was less stiff but more flexible than the one soaked in distilled water. Potato … Sigue leyendo →

slideshare

Slideshare

1) Name signs/symptoms caused by cholera. Diarrhoea, vomiting, weaknessies and getting dehydrated are the signs. Feeling sick is the symptom. 2) State ways in which the bacterium spreads in the village. The first way of how the bacterium spreads in the … Sigue leyendo →

 1 – State the uses of energy in our body. It contracts the muscles, so we can move our parts of the body; It is used in reactions that produce different molecules; It is used to build up larger molecules from smaller … Sigue leyendo →

Inspired air Expired Air Oxygen 21% 16% Respiration (raw materials) Carbon Dioxide 0.04% 4% Respiration (waste products) Water vapour (humidity) Variable  Always high (100%) Depends on the environment/atmosphere Temperature Variable Always warm Mucus Dust Variable Few, or no dust Ciliated … Sigue leyendo →