A lmost all macroscopic organisms are either plants or animals. Of course, humans are animals. Kingdom Plantae P lants produce new cells out of inorganic material by photosynthesis . They do not have the ability to move around their environment except by growing or being transported by wind, water, or other external forces. I n contrast, animals do not produce their own food but must eat other organisms to obtain it.
Animals are generally more complex structurally.
Unlike plants, they have nerves and muscles that aid in rapid, controlled movement around their environment. I mmediately below kingdom is the phylum level of classification. At this level, animals are grouped together based on similarities in basic body plan or organization. For instance, species in the phylum Arthropoda have external skeletons as well as jointed bodies and limbs. Insects, spiders, lobsters, and crabs are all Arthropoda.