If nematodes are the most numerous animals, the Arthropoda, including insects, are the most diverse, accounting for more than half of all known animal species. What features have led to the remarkable evolutionary success of this branch?
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If nematodes are the most numerous animals, the Arthropoda, including insects, are the most diverse, accounting for more than half of all known animal species. What features have led to the remarkable evolutionary success of this branch?
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- Which of the following is not a member of the phylum Chordata? a. Cephalochordata b. Echinodermata c. Urochordata d. VertebrataCreate a body plan table (Insert → Add Table) for the following animal phyla: Porifera, Cnidaria, Platyhelminthes, Mollusca, Annelida, Nematoda, Arthropoda, Echinodermata, and Chordata. Describe each phylum by identifying the following body plan features. Use Lesson 12 (Chapter 32) and Lesson 13 (Chapter 33) as a guide. 1) Symmetry: Asymmetrical, Radial, or Bilateral 2) Tissue type: Parazoa, Eumetazoa (diploblastic), or Eumetazoa (triploblastic) 3) Body cavity (if triploblastic): Acoelomate, Psuedocoelomate, or Coelomate 4) Developmental mode (if Coelomate): Protostome or Dueuterostome Note: Depending on the body plan, features 3 & 4 may not apply to specific phyla. * Please answer 3) and 4) ONLY. Thank you.Create a body plan table (Insert → Add Table) for the following animal phyla: Porifera, Cnidaria, Platyhelminthes, Mollusca, Annelida, Nematoda, Arthropoda, Echinodermata, and Chordata. Describe each phylum by identifying the following body plan features. 1) Symmetry: Asymmetrical, Radial, or Bilateral 2) Tissue type: Parazoa, Eumetazoa (diploblastic), or Eumetazoa (triploblastic) 3) Body cavity (if triploblastic): Acoelomate, Psuedocoelomate, or Coelomate 4) Developmental mode (if Coelomate): Protostome or Dueuterostome Note: Depending on the body plan, features 3 & 4 may not apply to specific phyla. * Please answer 1) and 2) only. Reposting question for other two to be answered.
- Which of the following is the correct classification for the following invertebrate animal: This animal has a wedge shaped muscular "foot", and it is a filter feeder. This animal is covered by two shells connected by hinge ligaments. Question 22 options: a) Phylum Mollusca, Class Bivalvia b) Phylum Chordata c) Phylum Echinodermata d) Phylum Arthropoda, subphylum Hexapoda e) Phylum Platyhelminthes f) Phylum Echinodermata g) Phylum AnnelidaList down two 2 concepts for each about the general characteristics of invertebrates (as a whole) as to: (a) body plan, (b) niche, (c) locomotion, (d) reproduction, and (e) evolution.Suppose you came across a novel organism you suspected belonged to one of the following animal phyla: Porifera, Cnidaria, or Ctenophora. Which of the following characteristics would NOT be helpful in placing the organism into the correct phylum? 1) how it acquires food 2) whether adults are sessile or mobile 3) whether the organism has a coelom 4) the number of tissue layers it has 5) the type of body symmetry it has
- Although nematode worms and arthropods do not appear related, they, in fact, are. One similarity between these two groups of organisms is/are; They both have a hydrostatic skeleton They both molt They both have a segmented body plan They both have a ventral nerve cord and nerve gangliaFlatworms have no coelom. Recent gene sequencing shows that their closest relatives are the rotifers and gastrotrichs (which are pseudocoelomate), the bryozoans (which are coelomate), and the entoprocts (which are acoelomate). Which of the following is a legitimate conclusion? Flatworms, rotifers, and gastrotrichs form a monophyletic group. Flatworms and bryozoans form a monophyletic group. Flatworms and entoprocts form a monophyletic group. Bryozoans, rotifers, and gastrotrichs form a monophyletic group. There must be flaws in the gene sequence analyses.Using the examples from the animals you have studied in this lab, give the differences between the following phyla: Echinodermata and planaria Cnidaria and Porifera Annelida and Nematoda Cnidaria and Mollusca Echinodermata and Chordata 2. Charles a Biology student in California has found at the beach an animal he cannot name. What are some of the questions that he should ask to help determine the phylum of the animal? Based on the data that you recorded during this lab do you see a relationship between symmetry, cephalization, and number of germ layers? Can you tell what germ layer appears last? Name three characteristics or features in the phyla studied that you could tell are ancestral or primitive and three that you may call advance? Explain further?
- Rotifers and acanthocephalans previously belonged to separate phylum. But recent molecular studies and genome analysis show that acanthocephalans are sister groups of a class under Phylum Rotifera. And thus, the two should belong to a single taxon. Aside from the molecular evidences, what morphological and physiological features of both the rotifers and acanthocephalans support this claim? Explain your answer.compare cnidarians to sponges and to the clade containing flatworms, mollusks, and annelids. What features are similar among these groups? What features are different?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 Page