Poor genes can lead to extinction by causing lives to become shorter due to higher incidences of death by disease or weakness. These poor genes combine with other poor genes to create people or animals that are unable to live long and healthy lives.
yes
There are many ways.
Extinction.
The evolution of mammals
The organism that is reproducing is not doing it so that it may live, but so that its genes may be passed on. Without reproduction a population would dwindle rapidly and lead to the extinction of an entire species.
Yes poor reproductive succes does lead to extinction most of the time. for example the whooping crane reproduces very slowly. The first fledging to emerge from its egg kills its brother or sister. Less animals, slow reproduction. If there were ever accidents or if the animal died, and they never had babies, the more and more often that this happens the more likely that animal is to eventually become extinct.
extinction
homeotic genes
Deforestation of rainforests will likely lead to extensive extinction of species.
Deforestation of rainforests will likely lead to extensive extinction of species.
cheetah's aren't extinct...... but like poachers and stuff could eventually lead to their extinction.
Plate tech-tonics are spreading apart and around the globe. So the might collide with another Continent creating volcanoes and all the destruction would lead to extinction