<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: Meconium is the earliest or first stool of the mammalian infants.
Prolactin inhibit the release of GnRH hormone.
Explanation:
Meconium is the earliest stool of the infants. Some infants can have their first stool in the womb. Unlike other faeces, meconium comprises of ingested materials accumulated by the baby will in the uterus. It is very thick and dark. It is odourless and contain mucus, amniotic fluid, intestinal epithelial cells and lanugo.
Prolactin is a hormone produced in the pituitary gland that is responsible for milk production. It inhibit gonadotropin releasing hormone which responsible for releasing follicle stimulating hormone and lutenizing hormone. The hormone are responsible for ovulation and prolactin prevent the release of egg.
B.Some of the ball’s energy is transformed to thermal energy.
Explanation: Law of conservation of energy states that energy can neither be formed nor be destroyed but it can only be transformed from one form to another form
Involuntary muscles are not striated. Even among the striated muscles that are voluntary, the heart which is also a muscle, is involuntary. These muscles that are not striated are very smooth to the sight which is why they are also called Smooth muscles.
On the other hand the striated muscles, which are voluntary are highly fibrous and their primary function is to move the body voluntarily, and producing heat as a result of this muscle action.
There are several reasons why the use of alternative sources of energy would be beneficial to the Earth and its people, but the main reason is that fossil fuels will run out soon.