Sycon belongs to a group of animals which are best described as

Options

A. Unicellular or acellular
B. Multicellular without any tissue organization
C. Multicellular with a gastrovascular system
D. Multicellular having tissue organization, but no body cavity

Answer

To determine the correct classification of Sycon, we can follow these steps:

### Step 1: Identify the Phylum
- Sycon is an organism that belongs to the phylum Porifera. This phylum is commonly known as sponges.

### Step 2: Understand the Characteristics of Porifera
- Organisms in the phylum Porifera are characterized by being multicellular but lacking true tissues and organs. They have a simple body structure composed of different types of cells that perform various functions.

### Step 3: Analyze the Options
- a. Unicellular or Acellular: This is incorrect because Sycon is multicellular.
- b. Multicellular without any tissue organization: This option aligns with the characteristics of Porifera, as they do not have true tissue organization.
- c. Multicellular with a gastrovascular system: This is incorrect because Porifera do not have a gastrovascular cavity; this is a feature of other phyla like Cnidaria.
- d. Multicellular having tissue organization but no body cavity: This is incorrect as Porifera lack true tissue organization.

### Step 4: Select the Correct Answer
- Based on the analysis, the correct answer is option **b. Multicellular without any tissue organization**.

### Final Answer
Sycon belongs to a group of animals which are best described as **multicellular without any tissue organization** (Option B).

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