Energy
Producers need energy from the sun
You get the energy you need by eating food. Your body makes energy with the nutritions in the food. It can make kinetic energy or potential energy.
The source of energy for plants is sunlight.
photosynthesis
to survive and make energy
Oxygen
Hunger is the desire for food. We need food to make energy. Complicated proccesses in our digestive systems break down the food we eat and remove the macronutrients. The macronutrients are used to make energy for our muscles to use. If there is no food, there are no nutrients and no energy. When you are hungry, your body is "telling" you that you need to eat.
They are anaerobes and do not need oxygen. They are consumers and make energy by fermentation.
No. They need light for energy which they use to make food with.
We get the energy we need from the food we eat.
Everything in the food chain uses solar energy. Plants use it to grow and to make it's food. Animals need it because that is what they eat and we need animals and plants to survive.
Leaves need to carry photosynthesis in order to make food. The sun's rays give the leaves energy to make chlorophyll, which is the food they eat.