23a Prelab 23 Echinoderms and Invertebrate Chordates

Question:- 4. Describe characteristics of the phylum Platyhelminthes and its subgroups by discussing similarities and differences of (i) morphological and anatomical features, (ii) life styles (e.g., how they acquire nutrients and where they live), and (iii) life cycles and modes of reproduction of “turbellarians,” trematodes, and cestodes.

Questions1. Does the hydra illustrate the polyp or the medusa stage?2. How many germ layers does the hydra contain?3. What type of symmetry is seen in the hydra?4. Can you find the hydra tentacles? How many tentacles does your hydra specimen contain?5. Name the stinging cells present on the tentacles that are unique to cnidarians.6.Explain the movement of the hydra if live specimens are available. 7. If there are live hydra specimens do not add the vinegar as indicated on the lab website. Vinegar causes them to expel the cnidocytes. 8. View the preserved cnidarian specimens will be on display. They may differ from the ones directly mentioned in the lab website but there should be some medusa cnidarians as well as corals and sea anemones. Please make observations on the available specimens.

please help me locate and label the parts for Lepisosteus. 2 photos is ok! thanks

sea star  The _____________________________ groove contains tube feet.

Answer the review questions below. The phyla viewed were the platyhelminthes, mollusca, and annelida. 1. Which phyla exhibited bilateral symmetry? 2. Which phyla contained parasitic organisms? 3. Which phyla were coelomates? 4. Which phyla exhibited cephalization? 5. Which phyla that you viewed today contained specialized appendages? 6. Which phyla were aceolomates? 7. Which phyla had an incomplete digestive system? 8. Which phyla contained a shell? 9. Which phyla contained hermaphrodite organisms?

Questions 1. Describe the feeding process in Tetrahymena. What are the functions of the cilia? 2. What is the function of vacuoles? 3. What is the relationship between the number of vacuoles formed and time? 4. Write a testable question that can be answered experimentally using the India Ink method.

urgent please help create a Invertebrate Dichotomous Keys for Tunicates Invertebrate (Cannot be hand drown bc 1. lab requirement, 2. im dyslecsic) Invertebrate Dichotomous Keys. The keys must not be hand drawn. One key each for arthropods, echinoderms, mollusks, and others. Tunicates Specimen: Molgula sp.

match a word with the definition Atria, Cuticle, Pseudocoelom, Exoskeleton, Ecdysis, Malpighian tubes, Gastropods, Incurrent siphon, Crop, Gizzard, Septa, Protostomes, Deuterostomes, Pentaradial symmetry, Water vascular system, Myomeres, Swim bladder, Ventricle, Endoskeleton, Notochord   _______________An excretory organ for eliminating metabolic waste found in insects. _______________Thin-walled part of the heart that receives blood from the body. _______________Thin walled tube where food is temporarily stored. _______________Thick wall chamber where soil is ground up and useable organic substances are separated from waste. _______________Extendable fleshy tube that transports water into the body.

match a word with the definition Atria, Cuticle, Pseudocoelom, Exoskeleton, Ecdysis, Malpighian tubes, Gastropods, Incurrent siphon, Crop, Gizzard, Septa, Protostomes, Deuterostomes, Pentaradial symmetry, Water vascular system, Myomeres, Swim bladder, Ventricle, Endoskeleton, Notochord _______________Thin Fleshy partitions between segments. _______________A skin covered skeleton composed of Calcium. _______________This system uses seawater to generate hydraulic pressure to power their tube feet for locomotion. _______________A short, rigid rod located between the dorsal hollow nerve tube and the digestive tract. _______________Provides muscular movements for swimming or burrowing. ______________Organisms which exhibit determinate development, and spiral cleavage. ______________Organisms which exhibit indeterminate development, and radial cleavage. ______________ Organ that gives buoyancy to bony fish. ______________ Thick walled part of the heart that pumps blood to the body.…

please help me locate and label the parts for Chrysemys, Cyclemys, Chelonia, or Testudo. 2 photos is ok! thanks

Topic: Anthoceros: Development of Sporophyte Question: What happens during the active segmentation stage of zygote?

Name Class Date Skills Worksheet Directed Reading Section: Annelids pg.686-691 In the space provided, write the letter of the description that best matches each term. 1. segments a. primitive brain b. flap-shaped appendages c. an earthworm organ that grinds soil 2. cerebral ganglia 3. septa d. external bristles 4. gizzard e. series of repeated structures along the length of the body f. internal body walls that separate the segments of most annelids 5. setae 6. parapodia Read each question, and write your answer in the space provided. 7. How do nutrients and other materials pass between the segments of an annelid? 8. What organs are found in all the segments of an annelid? 9. Describe how signals are sent through an annelid's nervous system.

Procedure 8: Echinodermata Echinoderms are a diverse group of marine organisms. The name means "spiny-skin" and is appropriate because the internal skeleton of the animals in this group has spines, called ossicles, that usually protrude through the skin.. Echinoderms have a unique water vascular system that includes a network of tubes that connect many hollow tube feet. Water flow is controlled by muscle contractions and directs the movement and feeding of these animals. 1. Observe the display of specimens at the counter and answer the questions below. a. Name five examples of animals that belong to this phylum. 1. 수 Table 13.2. Sea star. 2. 3. 4. b. What type of symmetry does this phylum exhibit? c. Observe a live starfish or sea urchin. Look for the tube feet. 1. Describe the location of the tube feet in your specimen. 2. Estimate the number of tube feet in each arm.

Review Questions Answer the review questions below. The phyla we viewed today were the porifera, the cnidaria, the nematoda and the arthropoda 1. Which phyla exhibited bilateral symmetry? 2. Which phyla had no true tissues? 3. Which phyla contained parasitic organisms? 4. Which phyla were coelomates? 5. Which phyla exhibited cephaliziation? 6. Which phyla that you viewed today contained specialized appendages? 7. Which phyla exhibited radial symmetry? 8. Which phyla were pseudocoelomates? 9. Which phyla had a complete digestive system? 10.Which phyla were multicellular? 11.Which phyla were asymmetrical? 12. Which phyla were acoelomates?

Please answer fast "The cuticle and its profound effect on the organisation and functioning of the insect body". Explain and discuss this statement with examples.

Flatworms (phylum platyhelminthes) Procedure 1. Observe the live planaria, if present, under the dissecting. If there are no live specimens, view this video: https://www.youtube.com/watch?v=w0QzSYQGsnA a. What type of symmetry does the planaria display? b. Does the planaria exhibit cephalization? c. Can you locate the planaria eyespots? What do the eyespots sense? 2. View the large planaria model. Make sure you can identify the pharynx, the eyespots, and the flame cells. a. Does the planaria have a complete or incomplete digestive system? b. What is the function of the flame cell? c. Are planaria hermaphrodites? d. Scientists say planaria have ladder like organs. Why?

Why is a blood vascular system necessary in animals with partitioned coeloms?________________________________.

Topic: Earthworms 1. What is the function of the setae? 2. What is the function of the openings at segment number 14?

QUESTION 13:  Define the following terms as they apply to Platyhelminthes:   Eyespots:   gastrovascular cavity:

Question:- 1.How is morphology related to food collection in protobranch and lamellibranch subclasses of bivalves?

Pre-lab task 2: on the other side of this page, list the five protist supergroups (classical phenotypic classification), and place each of the 20 protist examples (given on the first page of TopHat Part II - Introduction to Domain Eukarya: The Protists) in its correct supergroup.

Clam I need help with the following questions about Clam When dissecting a clam, what functions of the parts are observed? What is the general feeding strategy of the clam, and how does the digestive system allow it to behave in that way? What is the nature of the circulatory system (open or closed) and is the clam acoelomate, pseudocoelomate, or true coelomate? How does the clam reproduce, obtain oxygen, and get rid of waste?

topic is about microtomes

Pi Name PRE-LAB 13 this page for Additional Information EADE ▪ https://openstax.org/details/books/biology-2e Chapter 27: Introduction to Animal Diversity Chapter 28: Invertebrates Chapter 29: Vertebrates Part A: Biodiversity III: Diversity of Animals Answer the following questions. 1 What are the key features of animals? https://www.thoughtco.com/the-main-animal-characteristics-4086505 a. b. C. 2 What two animal phyla have true radial symmetry? 3 What are the two major groups of animals in Bilateria (with bilateral symmetry)? 4 What are the three tissue layers in animals with bilateral symmetry? 5 What are the two distinct clades of protostomes? 6 What are the two phyla of deuterostomes? losinebt 0a 159 Ho coe

Lab Report 3 Specimens (1 Representative Species each) for: • Phylum Platyhelminthes: Class Turbellaria • Phylum Platyhelminthes: Class Trematoda • Phylum Platyhelminthes: Class Cestoda Phylum Platyhelminthes: Class Monogenea • Phylum Nemertea ⚫ Phylum Nematoda: Class Adenophorea Phylum Nematoda: Class Secernentea • Phylum Annelida: Class Polychaeta sity-Pontevedra and Fisherie • Phylum Annelida: Class Cletillata: Oligochaeta • Phylum Annelida: Order Hirudinea RCFPatani-

REPORT SECTION Name: Day & Hours of Lab Section: SUBPHYLUM CRUSTACEA Describe the joint motion of the crayfish cheliped (first walking leg). Compare and contrast the range of motion to that of your own wrist. Describe how the leg structure of the crayfish is modified to compensate for the limited motion of a single joint. BSC20110 v. 20231 EXERCISE

Topic: PORIFERA/SPONGES Answer the following: 1. Identify the specimen and give its scientific and common name, 2. Classify up to order level and list the characters justifying the classification 3. Describe its habit and habitat, 4. Label the parts or diagram of the specimen

Question:- 2.How might gill bacteria be important for survival in certain lamellibranch bivalves?

QUESTIONS 1. In a developing Chicken embryo, why is the chorioallantoic membrane used in embryologic experiments? 2. In a developing chicken embryo, what mesoderm lines the amniotic cavity?

Answer the following questions: Give examples to support your answers. Elaborate your answer.. 1. Give one method  done by some country to save sea turtles. 2. Discuss why some sa that hemichordates are said to be the missing link between the invertebratesand vertebrates. 3. What is the importance of knowing the marine organisms residing and depending on the oceans? 4. Is there any relationship among fish lice, bird lice, and land mammals, except that they are lice? 5. Differentiate baleen  and toothed whales in four sentences. 6. How do marine organisms especially the animals found in the pelagic affects the populations of certain species in the ocean?

proposal project on Mesenchymal Stem/Stromal Cells for Rheumatoid Arthritis Treatment

BIOL 2301 Chapter 8 OpenStax Anterior view of the right hand LABEL in the bones of the hand: -Distal phalanx I -Distal phalanx V -Middle phalanx III -Middle phalanx II -Middle phalanx IV -Proximal phalanx IV -Proximal phalanx V -Proximal phalanx II -Distal phalanx IV -Proximal phalanx I -Ulna Il m IV V -Radius -Carpals -Metacarpals -Metacarpal II -Metacarpal V -Metacarpal I NOW point at the same bones in your own hand. LABEL in the bones of the foot: -Distal phalanx I -Distal phalanx V -Middle phalanx III -Middle phalanx II -Middle phalanx IV -Proximal phalanx IV -Proximal phalanx V -Proximal phalanx II -Distal phalanx IV -Proximal phalanx I -Tarsals -Calcaneus -Metatarsals -Metatarsal II -Metatarsal | -Metatarsal IV NOW point at the same bones in your own foot. Anterior view of the right foot 12