Because said species will survive and reproduce at a rate that keeps the population numbers sufficiently high for good genetic variability.
i dont know
i need to know this too. i have a project due on tuesday.
it means that they know how to live there properly, coz we couldn't!
Its NaTuRaL sElEcTiOn if you didn't know.
They have gills to breathe underwater and some fish have feelers so that they know where they are going.
That is a very good question. Equally difficult to answer correctly. You do not know why so many viruses can affect only particular species. There are many species of malaria, which can affect particular species only. For the same reason, malaria can be transmitted by anopheles mosquito only. You can say that that particular mosquito has got particular receptors.
I don't know, too bad, you wasted 3 min of your life looking at this
The reason why some pollen grains have spikes is because of the plant species. It also may be because of where the plant was adapted. Pollen grains have spikes also simply due to the location where the species is found. It is located in the coastal species where pollen grains have a different pollen shape to help with things such as salt resistant while a species found inland will be more heat resistant. It really just depends on the type of environment in which the plant has adapted. By Lyn Le
Extinction of a particular animal species occurs when there are no more individuals of that species alive anywhere in the world. The process of extinction is a natural part of evolution.
Well...........I dont know?
The toucan is adapted to a rainforest environment, in the same way that an orangutan is adapted to rainforest living. Your question might need to be expanded: for example, do you want details of the toucan's diet, living and breeding habits? Or do you want to know how toucans evolved into rainforest species? You might like to refer to http://en.wikipedia.org/wiki/Toucan and its references to see whether your basic question is answered there.
The Taiga biome is a very cold place. It consists of fur trees and snow. You probably already know this but, the animals are adapted to there environment as well as the plants.