Human impact on the environment or anthropogenic impact on the environment includes impacts on biophysical environments, biodiversity, and other resources. The term anthropogenic designates an effect or object resulting from human activity.
Animals can be divided broadly into vertebrates and invertebrates. Vertebrates have a backbone or spine (vertebral column), and amount to less than five percent of all described animal species. They include fish, amphibians, reptiles, birds and mammals. The remaining animals are the invertebrates, which lack a backbone. These include molluscs (clams, oysters, octopuses, squid, snails); arthropods (millipedes, centipedes, insects, spiders, scorpions, crabs, lobsters, shrimp); annelids (earthworms, leeches), cnidarians (jellyfish, sea anemones, corals), and sponges.
All animals in the Chordate Phylum have backbones. They are also called vertebrates.. The Chordate Phylum is split into Classes. Several Classes are listed below: Mammal Class: These animals usually have hair/fur.They give birth to live young and feed their young with milk.ll animals in the Chordate Phylum have backbones. They are also called vertebrates.. The Chordate Phylum is split into Classes. Several Classes are listed below: Mammal Class: These animals usually have hair/fur.