How does the digestive system of a nematode or annelid differ from that of a flatworm? In what ways is the digestive system of an annelid worm more efficient than that a flatworm
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- What are the disadvantages of a flatworm’s digestive system having only one opening?A) State the function of the following external parts of the genus Cambarus (Class Crustacea): walking legs: opening of sperm duct: gills: excretory pore: abdomen: eyes What are the hairlike appendages called that anchor into the skin of annelids? What structures do earthworms have to help dispose of nitrogenous wastes? Briefly describe how earthworms reproduce and what structures are involved.What part of the earthworm's digestive system would you see in a cross-section anterior to the gizzard? the gut the sperm receptacles the crop the pharynx the oral cavity
- Nematode worms and annelid worms share which of the following features? presence of a circulatory system molting absence of species with parasitic lifestyles presence of segmentation a digestive tract with two openings (a mouth and an anus)Which of the following is the correct classification for the following invertebrate animal: These animals are long and segmented and have no appendages. They are covered by a protective cuticle and have a closed circulatory system. Question 20 options: a) Phylum Echinodermata b) Phylum Mollusca, Class Bivalvia c) Phylum Chordata d) Phylum Annelida e) Phylum Platyhelminthes f) Phylum Arthropoda, subphylum Hexapoda g) Phylum Echinodermata Previous PageNext PageWhich of the following is true about polychate worms (Feed using nematocysts/ part of the ecdysozoa/ typically live in the marine environment/ unsegmented with a radially symmetrical body)?