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Diano4ka-milaya [45]
3 years ago
12

Which structure is unique to vertebrates? limbs brain skin backbone

Chemistry
1 answer:
IRISSAK [1]3 years ago
4 0

Answer:

Backbone

Explanation:

Organisms that have backbones are known as vertebrates, while the ones without a backbone are classified as invertebrates.

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When active metals such as magnesium are immersed in acid solution, hydrogen gas is evolved. Calculate the volume of H2(g) at 30
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The volume of  H₂ (g) obtained is 22.4L

Explanation:

First of all, think the reaction:

2HCl (aq) + Zn (s) → ZnCl₂ (aq)  + H₂ (g)

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4 0
3 years ago
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yeah

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