Answer is D.
Waste products from metabolism are carried by the circulation to the kidneys, which filter them out if the blood to be excreted in urine.
The brain and spinal cord are both structures of the central nervous system.
Agarose<span> is a polysaccharide that can be used to form a </span>gel<span> to separate molecules based on size. </span><span>Small DNA fragments wiggle through the pores in the </span>agarose gel<span> faster than longer fragments.</span>
I am thinking C. Good luck
<h3><em><u>C.</u></em><em><u> </u></em><em><u>This cell has no nucleus.</u></em></h3>
Because bacterial cell do not have a well-defined nuclear membrane. The coiled DNA particles lie naked in the cytoplasm. This is called nucleoid. While in animal cells the nucleus is surrounded by a well-defined nuclear membrane.