Answer from: RealSavage4Life
The echinoderm with long spines belongs to the class Echinoidea which includes sea urchins, heart urchins, cake urchins and sand dollars. This spine serves as their protective mechanism from predators. The spines are joined to the skeleton and muscles surround it. The muscles enable them to swivel its spines from predators.
Answer from: Quest
well first you need the sample of the temperature and gas level. i couldnt write a hypothesis unless i had some data. i think temperature changes will effect volumes of gas because gas changed into a solid or liquid at specific temperatures.
Answer from: Quest
Oi oi oi oi oi oi i think it is true
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Hybrid instruments that play sounds that are part sampled and part synthesized are known as:
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Biology, 22.06.2019 22:30, jazzyjaz2003
Based on their relative positions in the periodic table, which two elements would have the same number of valence electrons?
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What is an echinoderm with long spines?...
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