Examlex
The arthropod skeleton hardens by __________,which is a formation of chemical bonds between protein chains.
Sperm Cell
A male reproductive cell designed to fertilize an egg cell, contributing half of the genetic material to the offspring.
By-products
Materials produced as a residual or secondary product during the manufacturing process or chemical reactions.
Nicotine
A stimulant and addictive substance found in tobacco, which affects the nervous system when consumed.
Addictive
Characterized by a compulsive need to engage in a particular activity or consume a substance, leading to significant physiological or psychological dependence.
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Q4: Which of the following phyla of animals
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Q32: Squids,octopuses,cuttlefishes,and nautili belong to the molluscan class<br>A)Gastropoda.<br>B)Cephalopoda.<br>C)Polyplacophora.<br>D)Bivalvia.<br>E)Pelecypoda.
Q37: Which of the following phyla of animals
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Q48: In the rotifer class _,amictic eggs develop