Cephalochordata is the subphylum that retains all chordate characteristics, even in the adult forms.
Answer:
The ozone layer is still here I believe, it's just slowly going away due to our pollution of the air and such :/
Explanation:
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Testicular cancer or cancer of the testisoccurs when cancer cells form in one or both testicles. These cells begin to change and grow uncontrollably, forming a mass or tumor. The cells can also invade the blood stream and lymph system and spread, leading to tumors in other areas of the body called metastases.
Also during the Krebs cycle, the two carbon atoms of acetyl-CoA are released, and each forms a carbon dioxide molecule. ... Two acetyl-CoA molecules enter the cycle, and each has two carbon atoms, so four carbon dioxide molecules will form.