<span>In ecology, PPDF stands for Ponderosa Pine Douglas Fir.
In general, PPDF is used as a security of a document which exceeds what someone can do within the PDF software were itself. In ecology its PPDF genus is Pseudotsuga.
Other names which are marketed include
Douglas fir, Oregon, and Oregon pine.</span>
Answer: The digastric muscle is <u>involved in any complex jaw action such as speaking, swallowing, chewing and breathing.</u> When the <u>digastric muscle contracts,</u> it acts to <u>elevate the hyoid bone</u>. If the hyoid is being held in place by the infrahyoid muscles,<u> it will tend to open the mouth.</u>
Genotype - the total genetic constituent of an individual
phenotype - the expressed shown characteristics is called phenotype
