<span>When the genes propagate from one area to another.
The founder effect happens when genetic diversity declines due to an external larger group of organism invades a set of current living population. An example of this process is when the British colonies invaded the Mesoamerican continent where native americans lived and were outrun by the British colones, especially since many wars were made and ethnic cleansing. </span>
The best answer would be the butterfly. Many insects go through different physical changes during growth. These insects include the butterfly. From being an egg it turned into a larva and grown into a caterpillar which later on become a butterfly.
Counting the yearly layers can date them. The oxygen in the water molecules also holds a key to past climate. Scientists are able to use the oxygen atoms in the glacial ice as a proxy for air temperature above the glacier.
Starch can't be used by the organism the way it is, because cells aren't able to do anything with it.
If you break it into glucose though, it becomes usable.
Hope it helped,
BioTeacher101
test the hand sanitizers on bacterial colonies that are kept in the exact same environmental conditions, such as temperature and light level
