Obtain nutrients like carbs, fats, minerals, proteins, vitamins and water
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15
What is this? Diaphragm contracts, lungs expand, air enters the mouth and the nasal cavity, travels through the respiratory tract until it reaches alveoli
inhalation
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15
The ___ glands, the ____ and the ____ are the digestive system´s accesory glands
salivary, liver, pancreas
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15
The bronch enter into the lungs. They branch off into smaller and smaller ______. These end in microscopic air sacs in the lungs called the _____
bronchioles, alveoli
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15
What are the main nutrients?
carbohydrates, fats, proteins, vitamins, minerals and water
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15
what are the 6 parts of the digestive tract?
mouth, pharynx, oesophagus, stomach, intestines anus
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15
What are three secondary sex characteristics of boys during puberty?
hair grows under the arms and in the pubic area, voice gets deeper, muscles grow larger
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15
What are the male reproductive organs?
testes, penis, accesory glands and vas deferens
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15
What is the difference between a receptor and an effector?
Receptors detect stimuli and send signals to the nervous system. Effectors respond to orders generated by the nervous system.
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15
what is the function of platelets?
join together and seal up cuts so that we don´t lose blood
