Answer:
Ambulacraria
Explanation:
Ambulacraria or Coelomopora is an invertebrate clade that encompasses the Echinodermata and Hemichordata within the deuterostomies. This grouping is considered Chordata's sister taxon because it has a common ancestor.
The phylum Chordata is considered the last within the evolutionary range and comprises all vertebrates and some invertebrates such as amphioxus and tunicates. The main feature of this phylum is the presence of notochord in at least one of its embryonic phases. In vertebrates, the notochord will later make room for the Vertebral Column.
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Answer:
Explanation:
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The sky is blue due to Rayleigh scattering.
Particles in our atmosphere split the white light that the sun emits to the shortest wave length
(Blue)
Skies becomes red during the sunset since an angle forces the light to travel through more dust particles making it a longer wavelength
(Red)
Water in the clouds are not small enough to split light into a specific colour so it remains the same
(White)
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Natural variation provided the phenotypes that natural selection then acted on, over time causing evolution
