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Its just like Car and gas, if you don't put gas then your car won't start. Human body works just like that.
Humans need energy first for basal metabolism and then for physical activities. The proteins, carbohydrates and lipids present in the food we take are or utilized by the body as a source of energy. The amount of energy measured in calories, which is needed to maintain the body while at rest is called the basal metabolic rate (BMR). The BMR is usually lower for women than for men and in general, it is affected by size, shape, weight, age and activity of endocrine glands. In addition, any type of exercise requires still more energy.
We spend energy when we do any type of work such as walking, running (jogging), swimming, dressing and undressing. Even when sitting at resting we spend some energy.
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∙ 15y ago
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Why do humans have to have food?
Humans need food to use for energy, without energy we die basically.
What do humans need in order to have energy to grow?
We need food and sleep
Why humans need energy?
The reason why we need energy is to get food for the nutrients so we can keep going without dieing
Why do humans need carbohydrates?
carbohydrates are our main source of energy
Why dont amphibians need as much energy as humans do?
Because they dont use their energy that much
How energy comes form food?
We humans (as well as animals) get the energy we need from our food. This energy is stored in the food, in the form of chemical energy.
How are nuclear reactors useful?
They produce electrical energy. Humans need a lot of that.
What objects that produce mechanical energy?
all the electrical object and the objects that need a source of energy except for a humans is called mechanical energy
Where do humans get energy from?
There are many sources that humans can get their energy from. Humans typically get their energy from different food sources.
Where do humans get there energy?
Humans use food for energy.
Why do humans breathe on planet earth?
Humans breath to provide oxygen to the cells throughout the human body. Cells need food and oxygen and in return produces heat, CO2, and energy. Therefore, humans need to breathe in order to "feed" their cells, as well as to get energy to power their body.
Why do snails and slugs need to eat food?
They also need energy for their body's just like us humans.
