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How does method by which cnidarians obtain food differ from method by which poriferans obtain food?
Poriferans needs organic substances and cnidarians needs of a gastrovascular cavity with openings.
What evolutionary advancements do the cnidarians have that are not present in poriferans?
Cnidarians exhibit several evolutionary advancements over poriferans, including the development of true tissues and a simple body plan with distinct cell layers (ectoderm and endoderm). They possess specialized cells called cnidocytes, which contain stinging organelles (nematocysts) used for capturing prey and defense. Additionally, cnidarians have a nerve net that allows for more coordinated movement and responsiveness to environmental stimuli, unlike the more rudimentary cellular organization found in poriferans. These features enable cnidarians to be more active and complex organisms in their ecological roles.
What are the differences between the poriferans and cnidarians?
Cnidarians are radially symmetrical animals having sacklike bodies with only one opening and tentacles with stinging structures; they occur in polyp and medusa forms whereas Poriferans are primitive multicellular marine animals whose porous bodies are supported by a fibrous skeletal framework; they usually occur in sessile colonies.
What ways are cnidarians similar to the poriferans?
They both have a large opening through which water flows allowing them to suspend food particles from the water. Their tentacles aid in their ability to propel water towards these openings, increasing their food intake.
What is the difference between poriferans and porifere?
Porifera is name of phylum and animals belonging to it are called poriferans.
What primary characteristics of animals are not exhibited by the poriferans?
Poriferans (sponges) lack many common characteristics of animals such as a head or a mouth. Typically poriferans do not have eyes, ears, as well as other sense organs. Poriferans do not possess major organs such as heart, stomach, muscles, or even a nervous system.
What are the examples of poriferans?
Sponge
What the example of poriferans?
Sponge
What are habitat of poriferans and coelentrates?
All poriferans and coelenterates live in water, most of them in sea water, but some in fresh water. Poriferans are bottom-dwellers. Coelenterates can be free-swimming, fixed to the bottom or live in colonies fixed to the bottom, depending on species and face of life.
What are two types of cnidarians that are formed by colonies?
small cnidarians and big cnidarians
How do protozoans differ from poriferans?
protozoans are tiny,single celld organism. they are very small and it can be only seen trhough a microscope. poriferans are the simplest of the many celled animals their bodies are made up of hollow tubes with pores or openings on the side
What is the family for cnidarians?
The cnidarians are in the Kindom family
