Answer:
option a
Explanation:
because When hydrogen is used to power a fuel cell, the only byproducts are water and heat—no pollutants or greenhouse gases are produced.
First, a complete digestive system means that the digestive tract has a beginning or the oral end and the opposite end or the aboral end. This is found in more complex animals starting from roundworms (flatworms have an incomplete digestive tract). A closed circulatory system is found in animals more recent than mollusks. The presence of the coelom makes it more evolved than the flatworms.
Specifically, a small animal with a segmented body, short stiff appendages, and soft skin with the above characteristics point out to the phylum Annelida or annelids.
Out of the following
given choices;
A. unimportant; no medical attention
B. stable; the R.I.C.E. formula
C. severe; immediate medical attention
D. severe; the R.I.C.E. formula
The answer is C. Head
injuries should never be overlooked. This is because
the brain could be damaged yet it is the most important organ of the body. Many
symptoms of serious brain injury won’t appear right away. Some injuries result
to internal hemorrhage that is not
detected then but later causes serious brain damage such as intracranial
hematoma.
