Question

Which two cell types in placozoans make up the endoderm tissue layer?

A)cover cells and cylinder cells
B)gland cells and cover cells
C)fiber cells and cover cells
D)gland cells and cylinder cells

Answer 1

Answer:

D

Explanation:

I made a 100 on the text

Answer 2

Two cell types in placozoans make up the endoderm tissue layer are - D) gland cells and cylinder cells.

The Placozoa a marine free-living multicellular basal form of organism. These are condisered as the simplest structure of all animals.

• It has three genera namely Trichoplax adhaerens, Hoilungia hongkongensis, and Polyplacotoma mediterranea.
• It has three tissue layers that are ectoderm, endoderm and mesoderm.
• The ectoderm are formed of cover cells.
• The bottom layer is made up of cylinder cells that has cilia used in locomotion, and gland cells that lack cilia.

Thus, two cell types in placozoans make up the endoderm tissue layer are - D) gland cells and cylinder cells.

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