Question

If you think of the earthworm body plan as a drinking straw within a pipe, where would you expect to find most of the tissues that developed from endoderm? A. lining the straw B. lining the space between the pipe and the straw C. forming the outside of the pipe D. forming the outside of the straw

Answer 1

Option (A) lining the straw is correct.

What is the anatomy of Earthworm?

• An earthworm is a terrestrial invertebrate and a member of the phylum Annelida.
• They have a tube-within-a-tube body structure, corresponding external and internal segmentation, and typically include setae on each segment.
• They can be found wherever the soil, water, and temperature permit.
• The body of an earthworm is composed of a digestive tube and a thick cylindrical muscular tube that forms the body.
• The body is divided into segments, and furrows on the surface of the body serve as markers for the segment boundaries.

• The top of the first segment, which encloses the mouth, is a lobe made of muscle and flesh.

Learn more about Annelida here:

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