EVOLUTION
As known, all offspring have some traits different from their parents. This could be due to RANDOM DESCENT WITH MODIFKATION OR ADAPTABILIT TO ENVIRONMENT.
- Darwin suggested that Natural Selection takes place, where organisms share traits to be able to sunive in their respective habitats. For instance, insects could start changing o lours to camouflage and not be en by predators. This is volution. Sometimes, this could pen due to external factors. instance, fishers are constantly ting bigger fish. Hence smaller breed even smaller fish. evolution too. In addition, mals changed and bore that changed. It is that the ancestors and dolphins
- were able to walk. Which brought in Darwin’s theory, that all life comes from ow common ancestor, which he took to be bacteria. He said that these bacteria could have been formed (not born) by molecular reactions. They could also have arrived by an asteroid that hit the Earth.
- Application of theory of Evolution: Why are grasslands turning into deserts?
- When grass existed, wild animals dropped their dung and urine to allow the grass to thrive, tilled the grass with hooves, and ate excess grass. With their disappear grasslands started to die. Allan savory, a biologist from Zimbabwe, found this to be true.
- How did bacteria come together to create organisms?
- Scientists say that this is due to cooperarion. Earlier, they say, bacteria operated individually, over time, they came together, to form superorganisms. They specialized, and began to rely so much on each other they could not disband. They divided and formed colonies and hence organisms.
