Description : The cylindrical body form of cnidarians is called? -Biology
Last Answer : answer:
Description : The phenomenon of alternation of generation between asexual and sexual reproduction in cnidarians.
Last Answer : Name the following: The phenomenon of alternation of generation between asexual and sexual reproduction in cnidarians.
Description : The gastrovascular cavity in cnidarians
Last Answer : Give one word for the following: The gastrovascular cavity in cnidarians
Description : 1. The stinging cells on the tentacles of cnidarians are known as _______.
Last Answer : Fill in the blanks. 1. The stinging cells on the tentacles of cnidarians are known ... The annelid with locomotory structures like setae is ________
Description : How do cnidarians give birth?
Last Answer : They don't. Only mammals give birth to live young. Cnidariansrelease their eggs and sperm into the water and they are fertilizedthat way and hatch out into baby cnidarians.
Description : What is is the most common form of behavior in simple animals like cnidarians worms?
Last Answer : instinctive behavior
Description : How does a cnidarians reproduce?
Last Answer : Cnidarian do have eggs and sperm. These will become larvae and then the find a good place to stay so they set down roots and become a polyp.
Description : Not all animals have a circulatory system. Poriferans, cnidarians, platyhelminthes and nematodes (in these there are the pseudocoelom fluid but no vessels) are avascular animals. Echinoderms do not have true circulatory systems either.
Last Answer : What is the alternative means for transport of substances in animals without a circulatory system? Why is blood important for larger animals?
Description : Is the nervous system in platyhelminthes more or less sophisticated than in cnidarians? What are the main neural structures found in flatworms? How is this neural organization important for the diversity of biological niches explored by species of the phylum?
Last Answer : Platyhelminthes present a more sophisticated nervous system than cnidarians, as the first neural chords with ganglia (grouping of neurons) appear, a characteristic of the evolutionary process of ... that are parasites and those that are free-living. Image Diversity: platyhelminth nervous system
Description : Poriferans and cnidarians do not have excretory systems. Do platyhelminthes have an excretory system?
Last Answer : Platyhelminthes have a primitive excretory system made of flame cells (also called solenocytes), excretory ducts and excretory pores. Image Diversity: platyhelminth excretory system
Description : What are the types of reproduction presented by cnidarians?
Last Answer : They present asexual and sexual reproduction.
Description : How is the nervous tissue distributed in cnidarians?
Last Answer : Their nervous system is diffuse, there are no brain or ganglia.
Description : What is the type of digestion that occurs in cnidarians?
Last Answer : These animals have a digestive cavity and they make extracellular and intracellular digestion. The extracellular digestion takes place within the digestive cavity.
Description : Which are the germ layers present in cnidarians? Which tissues of the animal do they originate?
Last Answer : These beings present ectoderm and endoderm, two germ layers. Animals with only two germ layers are called diploblastic animals. The ectoderm gives birth to the epidermis and the endoderm originates the covering of the digestive cavity. Image Diversity: germ layers
Description : Concerning tissue complexity how different are cnidarians from poriferans?
Last Answer : Cnidarians have true tissue differentiation, they present distinct organized tissues in the body. Poriferans present only some dispersed specialized cells with no tissue differentiation.
Description : What are the two main morphological patterns of cnidarians? Concerning locomotion how do these forms differentiate from each other?
Last Answer : Morphologically, cnidarians classify as polyps or medusae. Polyps are cylindrical and medusae are circular convex, like an umbrella. Both shapes have tentacles. In general polyps are sessile ... cnidarians alternate polypoid and medusoid forms in their life cycle. Image Diversity: polyps medusae
Description : What are some examples of cnidarians? In which environments can these animals be found?
Last Answer : Jellyfish, hydra, corals and sea anemones are good examples. All of them are aquatic and most live in the sea. Image Diversity: jellyfish hydra corals sea anemone
Description : Which one of the following groups of animals is bilaterally symmetrical and triploblastic? (a) Aschelminthes (roundworms) (b) Ctenophores (c) Sponges (d) Coelenterates (cnidarians)
Last Answer : (a) Aschelminthes (roundworms)