Answer:
has an aggregation of sensory neurons at the anterior end
Explanation:
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Answer:
a) 2 Polynucleotide strands
Matter is anything that takes up space. Your mass determines how big, or small you are. Or, how big or small something is. Matter is in everything. Even air has matter. Humans are made of matter. Matter makes up atoms, carbon, cells, and everything else you can think of. (Except ideas)
The answer is b, globular