WebQuestion: 1. The water vascular system of echinoderms a, moves water through the animal's body during suspension feeding. b, functions as a circulatory system that distributes nutrients to body cells c, is analogous to the gastrovascular cavity of flatworms. d, functions in locomotion and feeding.. e, is bilateral in organization, even though the … WebAnswer (1 of 2): First, flatworms are thin enough that they can perform all necessary gas exchange through the body surface (tegument), acquiring oxygen and discharging carbon dioxide this way. Second, freshwater flatworms like the familiar planaria (Dugesia) have an excretory system (protonephr...

What special adaptations do flatworms have to help them survive …

WebSponges, cnidarians, and flatworms lack a specialized gas exchange surface because A. they live without the need for oxygen. B. the do not produce carbon dioxide. C. they are too large for a circulatory system to operate well. D. countercurrent exchange mechanisms cannot function well in their living conditions. WebA) Echinodermata—bilateral symmetry as a larva, water vascular system. B) Nematoda—segmented worms, closed circulatory system. C) Cnidaria—flatworms, … chinese food madison

Solved Members of the phylum platyheminthes which include

WebThese include having a true body cavity, a characteristic of such as earthworms and humans, and having a that extends from mouth to anus like many higher animals. Segmented worms also have a circulatory system, whereby blood flows in vessels like humans, which differs from the open circulatory systems seen in flatworms and some … WebPlatyhelminthes a. Describe the organ level of complexity, digestion,nervous system,reproduction (including life cycles that require an intermediate host) of the phylum Platyhelminthes. No circulatory system No Coelom (Body Cavity) Have a digestive system Have excretory system WebThe Flatworms are amazing because they can regenerate. Much like Jellyfish, you can cut off one part and another grows back. But the severed part also continues to grow to become its own Flatworm! ... The circulatory system consists of five separate pumps in order to have the blood flowing all the way from one to the other. Which Animals Have ... grandma birthday gifts diy