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1.) True or False: In animal phyla, endothermy is usually seen more than ectothermy? Explain why?
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- 3 (8.B) A student collected the animal shown below on a field trip. The student used a dichotomous key and a microscope to classify the animal. Step Characteristic Identification Go to 2 la Possesses segmentation 1b Lacks segmentation 2a Has an exoskeleton with jointed appendages Has no exoskeleton, unjointed appendages (if any present), and a segmented worm- Go to 3 Phylum Arthropoda 2b Phylum Annelida like body; is possibly in a tube (if in a tube, may have tentacles) Possesses a foot, a radula, arms, and/or За a shell Phylum Mollusca Lacks all of the above and is dorsoventrally 3b Phylum Platyhelminthes flattened How should this animal be classified? A Arthropoda C Mollusca B Annelida D Platyhelminthes silominA istockphoto.com/Nancy NehringWhich of the following conclusions is supported by the diagram and the data table? Number of cell types Platyhelminthes 30 Cnidaria 34 Nematoda 38 A. Platyhelminthes has the greatest complexity, and it is more closely related to Nematoda than to Cnidaria. B. Nematoda has the greatest complexity, and it is more closely related to Platyhelminthes than to Cnidaria. C. Cnidaria has the greatest complexity, and it is more closely related to Platyhelminthes than to Nematoda. D. The complexity is equal among all three groups, but Platyhelminthes is more closely related to Cnidaria than to Nematoda.For Phylum Mollusca, Class Cephalopod 1. Organ/system characteristics. Answer the following for each organism:a. How is their circulatory system? b. Excretory/osmoregulation: How does the organism eliminate waste? What organs do they use?c. Skeleton/support: List the structures or ways this organism supports itself. 2. Ecology. Describe/answer the following for each organism:a. Does it have a complete or incomplete digestive system? How does this animal feed?b. Identify any unique feeding structure• Be sure to use the correct terms to identify any unique feeding structure(s) used by theanimal.
- For phylum Echinoderms and class Crinoidea 1. Characteristics. List whether the organism is:a. Diploblastic or triploblastic (if applicable) b. Deuterostome or protostome (if applicable) c. Coelomate, pseudocoelomate or eucoelomate 2. Organ/system characteristics. Answer the following for each organism:a. How is their circulatory system? b. Excretory/osmoregulation: How does the organism eliminate waste? What organs do they use?c. Skeleton/support: List the structures or ways this organism supports itself. 3. Ecology. Describe/answer the following for each organism:a. Does it have a complete or incomplete digestive system? How does this animal feed?b. Identify any unique feeding structure• Be sure to use the correct terms to identify any unique feeding structure(s) used by theanimal.Answer according to phylogenetic tree for animal phyla 1. Which phyla are radically symmetrical? 2. Which phyla are coelomates? 3. Which phyla are triploblastic? Explain what triplobastic means. 4. Which phyla have segmented bodies and a closed blood system? 5. a) Differentiate between an exoskeleton and endoskeleton. b) Which phyla have these skeletons? c) Give one advantage and disadvantage of each of this skeletons 6. Which phylum did not hive rise to any other group of animals? 7. Name one feature of the chordates that make them different from the other phyla 8. What was the common ancestor of all animals?1) Develop a hypothesis that explains the origin of sponge skeletons (i.e, why did sponges develop skeletons in the first place). Keep the following in mind: the current paradigm suggests that sponges were the first animals, there were NO predators when sponges evolved, and that available food was floating in the water.
- F2 @ W 3 Which of the following things is/are true about this organism? O Phylum Chrodata MacBook Air F6 E Subphylum Vertebrata Echinoderm Odorsal tubular nerve cord Ofish lancelet Ohas a notochord 80 à Kingdom Animalia $ 4 R % T 6 & 7 F7 * CO 8 DII FB ( 9 F9 FL14. Nematode Life Cycle Matching: Match each of the descriptions below with the correct nematode worm species (A-D). Note that some descriptions may not apply to any of the 4 species (in which case just write “none") and some descriptions may apply to multiple worms species (in which case write the letters of all applicable species). (A) Dirofilaria (heartworms) (B) Dracunculus (Guinea worm) (C) Ascaris (D) Hookworms 1. Life cycle includes only a single host 2. The infective stage is a free-living larva that can enter the skin directly 3. On target to become the first parasite-caused human disease to be eradicated 4. Has an arthropod intermediate host 5. Traditional treatment involves winding the female worm around a matchstick 6. Infections can be prevented by not defecating on soill improving sanitation of soil 7. Female lays eggs around the anus of the host 8. Produce microfilaria that circulate in the blood 9. Has multiple larval stages and a snail intermediate host 10. Migrate…For phylum Chordata and Class Reptilia (turtles ) 1. Characteristics. List whether the organism is:a. Diploblastic or triploblastic (if applicable) b. Deuterostome or protostome (if applicable) c. Coelomate, pseudocoelomate or eucoelomate (if applicable) 2. Organ/system characteristics. Answer the following for each organism:a. How is their circulatory system? b. Excretory/osmoregulation: How does the organism eliminate waste? What organs do they use?c. Skeleton/support: List the structures or ways this organism supports itself. 3. Ecology. Describe/answer the following for each organism:a. Does it have a complete or incomplete digestive system? How does this animal feed?b. Identify any unique feeding structure• Be sure to use the correct terms to identify any unique feeding structure(s) used by theanimal.
- 4) Animals that undergo ecdysis, or molting, include nematodes and arthropods. Why do these animals molt? Group of answer choices shedding the exoskeleton allows the animal to move faster to escape predators the exoskeleton prevents them from obtaining oxygen their outer covering is made of a non-living substance shedding the exoskeleton makes the animal smaller, which makes it easier for the animal to hide from predators in crevices1. Cite 5 characteristics of sponges: 2. Which characteristics are unique to ctenophores? 3. Cnidarians are diploblastic, possessing an ectoderm and endoderm. Name the gelatinous nonliving material found between these two tissues. What cells are found within this gelatinous tissue? List the functions of these cells. 4. Polyp body consists of a tubular sessile body. True or false? 5. Define radial and bilateral symmetry, and protostomes and deuterostomes: 6. The presence of two different body forms, or dimorphism, is seen in the phylum Cnidaria. The form resembles an "upside-down cup" with tentacles, and the body form consists of a tubular sessile body. Hydra is an example of the body form, and a jellyfish is an example of the pody form.C Comic Strip A 10 Major Cur X G Why is phylur x W Nerlyn messa x G 4. What is reg x b Ar A bartleby.com/questions-and-answers/differentiate-the-various-classes-of-phylum-arthropoda-based-on-the-followi = bartleby Q Search for textbooks, step-by-step explanations to homework questions, a.. ience /Biology Q&A Library/ Differentiate the various classes of Phylum Arthropoda based on the following: Body regions, Differentiate the various classes of Phylum Arthropoda based Start your trialnow! Firstweek only $4.99! → Question Differentiate the various classes of Phylum Arthropoda based on the following: Body regions, Respiratory organ and Appendages. ***** 2 Ratings Expert Answer Tagged in Science IAWant to soe the sten.hv-sten answer? Type here to search ASUS i回