The answer is A: there was no land west of the Appalachian mountains
Answer:
The outer ear, external ear, or auris externa is the external part of the ear, which consists of the auricle (also pinna) and the ear canal . It gathers sound energy and focuses it on the eardrum (tympanic membrane).
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Answer:
Proportionate Sampling.
Explanation:
Proportionate sampling refers to a sampling technique that is used where the sample consists of many subgroups that are very different in size. The number of participants in each subgroup is assessed by their number compared to the total population. In this sampling process, the investigator splits a finite sample of the population into subgroups and then applies random sampling techniques to each population group.
