Important Roles For Animals

Animals are multicellular, eukaryotic organisms with membranous cell walls. They differ from plants in certain characteristics, including non-photosynthetic metabolism, limited growth, and a fixed bodily structure. All animals are classified as eukaryotes. They develop from a blastula, a germ cell that contains the genetic material for future generations. These living creatures have specialized sensory organs and digestive tracts. They also have a nervous system, specialized reproductive organs, and an extensive range of physiology. For this reason, they are considered eukaryotes, and their first evolutions came from protists.


There are many important roles for animals. Their complex food webs, interactions with other organisms, and altruistic behavior are essential components of their ecosystems. They help maintain the biodiversity of our planet by performing vital functions and acting as biological control agents. Furthermore, animals provide a source of nutrients for other organisms. Their bodies also decompose and return elements and organic compounds to the Earth. Therefore, animals have an important role to play in our planet.

The kingdom Animalia comprises major groups of organisms. They are heterotrophic, motile, and have specialized sensory organs. They feed on other organisms and form symbiotic relationships. Some animals even demonstrate altruistic behavior. All these functions help to preserve the diversity of the ecosystem. Their bodies also produce enzymes that help maintain a steady level of oxygen and other essential nutrients. In addition, many animals produce waste products that are beneficial for other organisms.

In addition to these functions, animals are also part of complex food webs. They form symbiotic relationships with other organisms and display altruism in the process. Lastly, they act as natural biological control agents and regulate the biodiversity of their environment. Not only do they sustain life on the Earth, but they provide the necessary nutrients for other living organisms. They are also responsible for recycling dead bodies, returning organic compounds and elements to the Earth.

As far as the diversity of life in the animal kingdom is concerned, it’s important to remember that the vast majority of animals rely on another organism for food. Most animals are carnivores – they hunt their prey and eat the carcasses of other creatures – although some are omnivores. Among these, the two most common types are herbivores and omnivores. They all have bodies that are capable of metabolizing different types of food, and the latter are called ‘omnivores’.

Animals have various body systems, which include tissues, organs, and cells. Each of these tissues has specific functions and is composed of cells. These cells perform different metabolic activities in order to support the body’s various organs and systems. They generally contain two types of cells: somatic and sex ones. This way, the differences between the species are easily understood. The diversity of life is not limited to humans alone. Other forms of life include birds, reptiles, and frogs.