bio of human and animals are related to the biology of their body funtions, discovery for their welfare and much more questions are their in my quiz. for this you should have to know what are human beings and animals. Animals are the most advanced organisms on the planet. The first animals are thought to have evolved over 550 million years ago and they have since spread to all corners of the globe and diversified into millions of species.
Animals can be distinguished from other living things by the combination of three features: 1) they are unable to make their own food; 2) they have multiple cells; and each cell has a nucleus and other specialized structures called organelles. Scientifically put, animals are heterotrophic, multicellular organisms with eukaryotic cells.
Animal species are often split into vertebrates and invertebrates – two very broad categories of animals. Vertebrate species are animals that do have a backbone such as humans, birds, fish and reptiles and make up the majority of large land animals.
Invertebrate animals lack a backbone and often have a skeleton on the exterior of the body. The majority of animal species are classed as invertebrates and many you will be familiar with such as insects, jellyfish, worms and spiders. Human biology is an interdisciplinary area of study that examines humans through the influences and interplay of many diverse fields such as genetics, evolution, physiology, anatomy, epidemiology, anthropology, ecology, nutrition, population genetics and sociocultural influences.
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