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.
Why do animals depend on plants. Plants give animals the food and shelter they need. Herbivores, which are plant eating animals, rely on plants to provide them with a regular source of food. They also provide shelter to may animals, both large and small.
Notice how water moves diï¬ erently through each soil texture.The forest is an ecosystem. Forests are full of living and nonliving things that depend on each other. Trees, ferns, and shrubs grow in the forest. Deer, frogs, lizards, insects, birds, and bears are some forest animals that need these plants.Water, stones, and soil are nonliving things that animals need too.otice how water moves diï¬ erently through each soil texture.The forest is an ecosystem. Forests are full of living and nonliving things that depend on each other. Trees, ferns, and shrubs grow in the forest. Deer, frogs, lizards, insects, birds, and bears are some forest animals that need these plants.