Cnidarians and Platyhelminthes both are diploblastic. In feeding a sea anemone,

Question

Cnidarians and Platyhelminthes both are diploblastic. In feeding a sea anemone, the tentacles capture the food item and place it into the pharynx rightarrow gastrovascular cavity for digestion. Tapeworms, Class Cestodes, are considered segmented worms. In earthworms, the adaptive value of segmentation may be that repeated body parts allow repair and replacement if a predator takes a bite out of the animal. Roundworms are really only able to wave their bodies back and forth due to having longitudinal muscle only. Annelida can inch forward because they also have circular muscle which can create a leverage point, from which the longitudinal muscle can contract. In Cnidarians, the medusa form is always involved in sexual reproduction, but some polyp forms can also sexually reproduce as well. Matching. Hydrozoan Scyphozoa Anthozoa True jellies Annelida Nematoda Platyhelminthes. Flame bulbs. Multiple Choice. Choose the best answer. Which statement about primitive sponges is false? Sponges don't have skeletons, but they do have spicules and spongin to support the cells. Sponges are said to be organized at a cellular level, but they do have a loosely organized ectoderm layer. Choanocytes are flagellated sponge cells that create the water current and filter food particles. Water flows in the osculum. The coelom is __________ missing from the Platyhelminthes. located between the mesoderm and endoderm layers. present in the Nematoda. contains internal organs in the earthworm and other Annelida. Two of the answers are correct.

Explanation / Answer

Answer:

TRUE/FALSE

Multiple Choice:

Which statement about primitive sponge is false - Water flows in the Osculum (Water flows out through the osculum).

Matching:

The Coleum is: - (E) Two of the answers are correct ( Missing from the Platyhelminthes. contain internal organs in earthworms and other Annelida)

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