To answer this question, you need to understand the classification of living organisms. The classification system organizes organisms into different categories based on their characteristics and evolutionary relationships.
The correct answer is C) Chordata. Human beings belong to the phylum Chordata, which includes all animals that have a notochord (a flexible rod-like structure) at some stage of their development. Other characteristics of chordates include a dorsal nerve cord, pharyngeal slits, and a post-anal tail.
Let's go through each option to understand why it is correct or incorrect:
Option A) Homo Sapiens - Homo sapiens is the scientific name for modern humans. While it is correct that human beings are classified as Homo sapiens, this option does not specify the phylum to which humans belong.
Option B) Porifera - Porifera is the phylum that includes organisms known as sponges. Sponges are multicellular animals but they have a different body plan and characteristics compared to chordates, so this option is incorrect.
Option C) Chordata - Correct. Human beings belong to the phylum Chordata.
Option D) Vertebrata - Vertebrata is a subphylum within the phylum Chordata. It includes all animals that have a backbone or vertebral column. While human beings have a backbone and are vertebrates, the phylum to which humans belong is Chordata, not Vertebrata.
The correct answer is C) Chordata. This option is correct because human beings belong to the phylum Chordata, which includes all animals that have a notochord at some stage of their development.