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The body of is made of two layers of ce...

The body of _____ is made of two layers of cells.

A

Platyhelminthes

B

Annelida

C

Coelenterate

D

Nematoda

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding which organism's body is made of two layers of cells, we can follow these steps: ### Step 1: Understand the Question The question asks which organism has a body made up of two layers of cells. This is typically a characteristic of certain types of organisms in biology. **Hint:** Think about the basic body plans of different organisms and how they are structured. ### Step 2: Identify the Options The options provided are: 1. Platyhelminthes 2. Annelida 3. Selenite 4. Nematode **Hint:** Consider the classification of these organisms and their body structures. ### Step 3: Analyze Each Option 1. **Platyhelminthes (Flatworms)**: These organisms have a more complex body structure with three layers of cells (ectoderm, mesoderm, and endoderm). **Hint:** Recall that Platyhelminthes are known for having a flat body and are triploblastic. 2. **Annelida (Segmented Worms)**: Annelids also have three layers of cells and a segmented body structure. **Hint:** Annelids are known for their segmented bodies and also have a triploblastic structure. 3. **Selenite**: This term likely refers to a type of organism known as "Cnidarians," which indeed have two layers of cells - ectoderm and endoderm. **Hint:** Think about organisms that are simpler and have a two-layered body structure. 4. **Nematode (Roundworms)**: Nematodes are also triploblastic and have three layers of cells. **Hint:** Nematodes are round and have a more complex body structure. ### Step 4: Determine the Correct Answer From the analysis, the correct answer is **Selenite (Cnidarians)**, which have a body made of two layers of cells: ectoderm (outer layer) and endoderm (inner layer). **Hint:** Remember that organisms with two layers of cells are typically simpler and belong to specific groups like Cnidarians. ### Final Answer The body of **Selenite** is made of two layers of cells.
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