Chordates (phylum Chordata) are animals which are either vertebrates or one of several closely related invertebrates. They are united by having, for at least some period of their life cycle, a notochord, a HOLLOW DORSAL NERVE CORD
The answers is chromosomes
I think the answer is A which is the axon
Hello there,
Your answer is option C.
<span>If two organisms are in the same phylum, the kingdom classification category they must also share.
Hope this helps you.
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Claudius Ptolemy is known to as a writer, mathematician, astronomer, geographer, astrologer. His hypothesis in regards to the solar system was that he used a mathematical model of the Almagest to represent the universe as a set of spheres. From there he created epicycles to calculate different dimensions in the solar system that he had created. For example, he calculated that the radius of the sun is about 20,000 times that of the earth.
In the other hand, Johannes Kepler was a German mathematician, astronomer, and astrologer. He believed that based on his religion the sun was the source of movement in the solar system. In addition, he believed that the sun caused a change in motion depending on how close a planet is to the sun.
