Air and water.
Depends on species.
Reproduce. Biology is all about sex.
They have territories. Females enter the males territory, they mate, and then part ways before things get too rough. Same is true for many species of mammals; particularily carnivores.
The theory of Common Descentbelievesthat all species on earth have a common ancestor.
They both have scales and some of each species are slimy.
Reproduction does not help a species to survive, it allows for a species to survive by replacing the ageing population. Without reproduction a species would cease to exist within 1 generation. By reproducing, the species adds to it's population, which helps the species to survive for a longer period of time, because they will not be killed off as easy and will not go extinct:)
Species Abundance refers to how common or rare a species is relative to other species in a specific location.
Each species have every right to survive, if not only humans do interfere with them through deforestation, destruction of their natural habitats, and also poaching them as food and selling them in black market or making them as a pet. This has to stop to prevent them from extinction.
they can match by having lots of things in common with each other but if the couple does not have anything in common with each other it is not matching
I can't name all 5000+ right here, but finding them is easy. 1. Go to Wikipedia. Type in mammal. 2. From the article on mammals, go to each order. 3. From each of these articles, go to the articles on each family. 4. From each of these articles, go to the articles on each genus (or directly to species for smaller families). 5. On each of the articles of the genera, the common and scientific names are given for every species in the genus. Not all species have common names, but all have scientific names.
A group of living things is called a population if they belong to the same species, a community if they comprise different species living in the same area, and an ecosystem if they interact with each other and their physical environment.
ok they need each others to repopulate and to feed off each other or for protection for example if i wasnt for us keeping dogs they'd be wild creatures forced to survive on there own which whould be kinda hard beacuse of there size verse other conivores