Lab 09_Mollusks and Arthropods

11:55 PM Fri Oct 2 57% A d21.lonestar.edu 1 of 1 Name Using what you know about the three major classes of mollusks, complete the chart below by checking the correct column or columns for each characteristic. Check even if the feature can be observed in just some species! Type of Mollusk Gastropods Characteristic Bivalves Cephalopods 1. Intelligent, well developed nervous system 2. Has no distinct head 3. Has an open circulatory system 4. External shells present in some species |5. Bite prey with beak 6. Uses gills for both respiration and food collection 7. All species are carnivorous predators 8. Uses a radula for feeding 9. Can change color for camoflauge 10. Can form pearls 11. Use a type of jet propulsion for movement 12. Has bilateral symmetry 13. Has a two part hinged shell 14. Is an invertebrate 15. Some species are venomous

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.

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

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

INSTRUCTIONS: Do not copy in Google  Please answer all, they are connected to the question QUESTION: Identify the basic characteristics and specialized features exclusive to each phylum of invertebrates. Mollusca Arthropoda Ectropocta

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

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.

A single tentacle has several nematocysts which can be viewed as small bumps on the surface of the tentacle. Nematocysts contain the stinging cells (cnidocytes). Label the nematocysts and cnidocytes and other parts observed in this 100x magnification of a tentacle

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-

10:36 K, O O G 85%Ï AIATS For Two Year Medic. A 165 /180 (02:47) hr min Mark for Review Insects and birds represent certain common features as given below except Can fly due to presence of wings Digestive tract contains chambers like crop and gizzard Triploblastic, coelomate with complete digestive tract Forelimbs are modified into wings Clear Response III

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?

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

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?

sea star oral 3.The _________________ ___________________ is inverted and pushed into the shell of a bivalve when feeding.

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?

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

Mollusks Procedure Make observations on the available specimens and fill in the chart below. Gastropod, chiton, bi-valve or cephalopod Name of specimen Physical description Tricolia pullus Mytilaster lineatus Chiton glaucus Loligo opalescens

TRUE or FALSE: match the muscle tissue with the characteristics that best represent it 14. Plasmodium has chloroplasts and a flagellum. 15. Platyhelminthes are also known as flat worms. 16. Obelia and Hydra are both in the same class of organisms. 17. Class Cestoda have a large scolax with suckers and hooks.

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 Lepisosteus. 2 photos is ok! thanks

INSTRUCTIONS: Do not copy in Google  Please answer all, they are connected to the question QUESTION: Identify the basic characteristics and specialized features exclusive to each phylum of invertebrates. Platyhelmintes Nemertea Nematoda

Select 3 organisms, each from a different class of the phylum Mollusca and: define characteristics interesting facts

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?

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

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.

CREATE AN ADDITION TO THE GRAPHIC. GIVEN THE FOLLOWING INFORMATION. MOLLUSKS ARE DIVIDED INTO THREE CLASSES: CLASS CEPHALOPODA (SQUIDS), CLASS GASTROPODA (SNAILS), CLASS BIVALVIA, (CLAMS AND OYSTERS) CEPHALOPODS HAVE A FEW ORDERS, ONE OF WHICH IS ORDER OCTOPODA (OCTOPUS) AND THE OTHER IS ORDER TEUTHIDA (Q THE SCIENTIFIC NAME FOR THE COMMON OCTOPUS IS OCTOPUS VULGARIS THE SCIENTIFIC NAME FOR THE COMMON SQUID IS LOLIGO VULGARIS.

Label the unshaded Marine animal

Test II. Comparing Characteristics. Given the groupings of phyla, please indicate within the prescribe column whether these characteristics belongs to the group. Indicate your answer by writing Y if a characteristic and N if a non-characteristics. If the characteristic is not true to all members of the phylum, then write NY. Characteristics PORIFERA CNIDARIA PLATYHELMIN THES NEMATHELMIN THES MOLLUSCA bilateral symmetry sexual reproduction Characteristics ANNELIDA ARTHROPODA ECHINODERMATA CHORDATA bilateral symmetry sexual reproduction

Give two specific anatomical features of free-living and parasitic flatworms and relate it to their mode of living. Anatomical features Free-living Parasitic 1.      2.

2:45 Animals Lab Part 1.pdf Figure 13.3. (A) Polyp and medusa forms of cnidarians and (B) a hydra poly 2. Obtain a preserved jellyfish specimen called "Goneonemus. Use your dissecting microscope to observe. Sketch the specimen in the space below. Dashboa... Student Sketch of Jellyfish Goneonemus Locate the following structures on your jellyfish and label them on your drawing. a. Gastrovascular activity-the central digestive cavity. b. Tentacles c. Cnidocystes-clusters of stinging cells in the tentacles 3. Obtain a live "Hydra" from the culture and observe it using your dissecting scope. Sketch the specimen in the space below. а Exercise Diversity of Life: Animals 123 124 Diversity of Life: Animals 12 Student Sketch of Hydrat Locate the following structures on your hydra and label them on your drawing a. Mouth b. Tentacles (how many does your hydra have?) c. Body stalk d. Gastrovascular cavity (seen through the body wall) 4. Observe the other specimens displayed at the counter. 2…

Discuss the importance of insects to man ( maximum two pages)

Recyc FOR 7 Forg Emp Micro Ed ← C Mc Graw Hill 60°F Clear Piedmont Technical College Multiple Choice Question https://learning.mheducation.com/static/awd/index.html?_t=1680067 0000000000000000000000000000 0000000000000 of 41 Concepts completed X The nervous system directly controls O blood cells and hair growth O bone growth O muscles and glands M Question Mode: Multiple Choice X EE Read About the Concent Need help? Review these concept resources. Rate your confidence to submit your answer. High i Medium + O Search 2023 McGraw Hill All Dighte Doceniod LC

Using Figure 31.2, identify the general characteristics of a mollusc.