Subkingdom Parazoa includesA. ProtozoaB. PoriferaC. MetazoaD. None of the above

To solve the question regarding the Subkingdom Parazoa, let’s analyze the options provided:

Subkingdom Parazoa is primarily known for its members that do not have true tissues or organs, distinguishing it from other metazoans. The key characteristics and classifications are as follows:

Protozoa: This group comprises unicellular organisms that are not part of the animal kingdom. Therefore, they do not belong to Parazoa.

Porifera: This phylum includes sponges, which are the simplest multicellular animals. They lack true tissues and organs, making them a part of the Subkingdom Parazoa.

Metazoa: This is a broader classification that includes all multicellular animals, including those with true tissues (such as Cnidaria and higher animals). Therefore, Metazoa is not specific to Parazoa.

None of the above: This option suggests that none of the previous options are correct.

Given this analysis, the correct answer is B. Porifera, as it directly represents the organisms that belong to the Subkingdom Parazoa.

Plain Text Version:

To solve the question regarding the Subkingdom Parazoa, let’s analyze the options provided:

Subkingdom Parazoa is primarily known for its members that do not have true tissues or organs, distinguishing it from other metazoans. The key characteristics and classifications are as follows:

Protozoa: This group comprises unicellular organisms that are not part of the animal kingdom. Therefore, they do not belong to Parazoa.

Porifera: This phylum includes sponges, which are the simplest multicellular animals. They lack true tissues and organs, making them a part of the Subkingdom Parazoa.

Metazoa: This is a broader classification that includes all multicellular animals, including those with true tissues (such as Cnidaria and higher animals). Therefore, Metazoa is not specific to Parazoa.

None of the above: This option suggests that none of the previous options are correct.

Given this analysis, the correct answer is B. Porifera, as it directly represents the organisms that belong to the Subkingdom Parazoa.