Answer:
can you please attach the picture to solve the answer
Answer:
b. absence of peptidoglycans in the cell walls of archaea.
Explanation:
<em>Archaea is a domain of unicellular organism (procaryotes) that live in extreme environments, their cell walls are made of pseudo peptidoglycan (similar in function to peptidoglycans but different in structure), </em>on the other hand, bacteria's cell walls are made of peptidoglycan and lipopolysaccharide.
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<span>Amniotic cavity is the term used for the sac which protects
an embryo from internal and external pressures. It contains the amniotic fluid which
serves as the cushion for guarding the developing embryo and the system to
which it is being fed on. It is a crucial part of pregnancy to be able to take
tests in diagnosing the fetus for possible defects and abnormalities and one of
the methods used is the amniocentesis wherein samples of the amniotic fluid are
sampled.</span>
The answer is D. these are all chemical reactions.
