Explanation:

- Humans fall under the classification Chordata. This phylum includes all animals with a notochord, a hollow neural tube, and gill slits at some development stage.

- Humans do not belong to Porifera. This classification refers to sponges, which are simple, multicellular aquatic animals lacking true tissues and organs.

- Porifera is not a classification for humans.

- Hominidae is the biological family that includes humans. This group, often called the great apes, also involves orangutans, gorillas, and chimpanzees.

- Vertebrata is a subphylum of Chordata. Humans are classified as vertebrates because they have a backbone or spinal column.