The priority action for Darla to take is to apply pressure through the vaginal canal on the presenting parts. In which by these technique applying pressure over the vaginal canal on the presenting parts will help relieve pressure on the umbilical cord. In addition, umbilical cord prolapse happens when the umbilical cord moves toward out of the uterus with or before the offering part of the fetus. It is a comparatively infrequent circumstance and happens in less than 1% of the prenatal period.
Answer:
B. polio—polyhedral shape
Explanation:
A virus is a small parasite which cannot self reproduce. For a virus to produce more viruses, it uses the cell to duplicate itself. Viruses contain RNA or DNA as their genetic material.
Poliovirus is composed of an RNA genetic material and it is responsible for Polio. Polio leads to paralysis and is transmitted through contaminated water or food, or contact with an infected person.
The shape of Poliovirus is formed by polyhedral (many-sided) shell or capsid.
The red-green color blindness is a recessive X-linked trait. The females are not affected unless both the X chromosomes have the affected allele. Mostly, the females are the carriers, and the males are affected as they have only one X chromosome. In the given pedigree, the father of Irene have the normal allele, while her mother is a carrier. However, Irene is neither a carrier nor affected. This means that she carries normal alleles on both X chromosomes. Hence, her allele combination is 
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The outermost layer of the Earth is called the crust.
That is called uric acid and it helps them maintain internal homeostasis in hot climates by retaining water
