Which of the following classifications do humans NOT fall under?

Porifera

The correct answer is Option (2) - Porifera

Humans DO NOT fall under the classification: Porifera

Here's why:

• Chordata: This is a correct classification for humans. It includes animals with a backbone or notochord, which humans possess.
• Hominidae: This refers to the great ape family, which includes humans and our closest extinct relatives. So, humans are indeed part of Hominidae.
• Vertebrata: This is a subphylum within Chordata that includes animals with backbones. Since humans are classified as Chordata, they are also Vertebrata.
• Porifera: This classification refers to sponges, which are simple multicellular organisms with very different characteristics from humans. They lack complex organs and tissues.

Therefore, porifera is the classification that humans don't belong to.