An individual organism does not lose characteristics. A species can, over time, and this is called natural selection, which thus results in evolution.
Sexual reproduction causes most variation in organisms. This is because genes get mixed up in the process whereas in asexual reproduction the offspring is genetically identical to the parent.
Food, otter pops, and such
transpiration
Switching genes on and off.
germination
osmosis
Wind and water erosion, but don't worry that is a very, very slow process.
resistance
Sexual reproduction causes most variation in organisms. This is because genes get mixed up in the process whereas in asexual reproduction the offspring is genetically identical to the parent.
Sunlight causes warmth which speeds up the process of evaporation.
A natural occurrence which causes mountains to to disappear is erosion, and to form is an earthquake (I think).
There are 7 characteristics of life one of which is irritability, meaning an organism needs to be able to react to its environment, this characteristic or instinct is what causes organisms to react to their environment. The ability to ajust to this change in their environment is adaption.
There are 7 characteristics of life one of which is irritability, meaning an organism needs to be able to react to its environment, this characteristic or instinct is what causes organisms to react to their environment. The ability to ajust to this change in their environment is adaption.
differential reproductive success caused by genetic variation is necessary for the process of natural selection.
A catalyst
Evaporation.
Evaporation