D i think because there is not enough food for everything and stunts the growth of all the animals
<span>She can remember about seven items, with the number ranging from five to nine. The function of short term memory is to store bursts of information for a short duration of time. A phone number has seven digits, and that is a perfect example of the use of short term memory. People given a phone number can usually store it and recall it several minutes later, but in a week, they will forget.</span>
