Answer is D. The phosphate group of membrane lipids are negatively charged.
The cell or plasma membrane is a bilayer of phospholipids. The two phospholipids layers are opposite to each other. Each phospholipid molecule consists of a phosphate group and a lipid. The phosphate form inner and outer layers of hydorphilic and are negatively charged 'heads' and lipid forms the tail, hydrophobic and non-polar. Since phosphate is negatively charged it repels negatively charged molecules and do allow them to pass through it.
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We have that The Sacral crest which makes up the Vertebral column is developed by the fused spinous processes.
From the question we are told
which landmark is composed of fused spinous processes
Generally
The Human Body is divided in various segment in terms of its anatomy.With the term in hand we focus on the spinal cord , the vertebral column .A structure in the human body that aid a lot of processes especially movement.
The median Sacral crest which makes up the Vertebral column is developed by the fused spinous processes.
Sacral crest is a piece created to serve its pyurpose as an attachment to a ligament on the Body
Therefore
The Sacral crest which makes up the Vertebral column is developed by the fused spinous processes.
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I think tissue or a nucleus