In the latter case the resistance is caused by dissipation of mechanical energy when the configuration or the direction of flow is sharply changed, by the formation of vortices and secondary flows as a result of the flow breaking away, by the centrifugal forces, etc.
Animals depend on plants for food as plants produce food and energy which animals can't, so, herbivores eat plants to get energy, carnivores eat herbivores and other carnivores for energy and omnivores eat all four, plants, herbivores, carnivores and also other omnivores for energy.
How Do animals get there energy. Plants and animals Where do plants get there energy. Plants and animals are nearly the same thing because both need water, air, sunlight, and food to survive. But have you ever wondered were they get there energy from? No, well your about to find out. Where do animals get their energy? Animals get their energy from the sun too. Although the most important energy source is the sun but they mostly get it from there food and water. Well basically they do need it from the sun but the most energy giving is their food and water.