Exercise 6_Molluscs I-2

Hello , Happy New Year.  I do hope that you can help me about this. This is my report regarding biology. It needs parameters and observation.          Thank you in advance ❤️

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

able 11.1. Comparison of some representative specimens of cnidarians. Genera Observable stage (medusa, polyp or both) Other distinctive characteristics (solitary or colonial; symmetry; with or wlo deposits) Acropora Aurelia Fungia Hydra Table 11.2. Comparison of the main body regions and appendages of arthropods. Class Body Regions Attached appendages based on body regions Diplopoda Chilopoda Insecta Arachnida XISMATER

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

6:16 58 docs.google.com/forms 3 Refer to the figure below 15 points based on a study by Purcell, S., 2002. The study compared the morphology of wild juvenile trochus (A) and hatchery produced trochus (B). You will note that wild juveniles (A) have spiked shell whorls. In contrast, hatchery- produced juveniles (B) of the same size have smooth shell whorls even at a smaller size. Describe the adaptive advantage that the spike whorls confer to these juvenile topshells. What kind of environmental selective pressure, could have led this type of morphological adaptation in topshells. Omm10 2 0 30 40 50 0 Omm10 20 30 40 50 Figure 1. Size series of wild-caueht (A - ton three) and hatcherv-produced (B - bottom three)

14. 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…

Q30: Match the all parts to this question, the answer choices are shown in the picture

Q11

Briefly describe characteristics of the hypothetical ancestral mollusc, and tell how each class of molluscs (Caudofoveata, Solenogastres, Polyplacophora, Monoplacophora, Gastropoda, Cephalopoda, Bivalvia, Scaphopoda) differs from the ancestral condition with respect to each of the following: shell, radula, foot, mantle cavity and gills, circulatory system, and head.

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Problem Why is it believed that echinoderms and chordates, which are so dissimilar, are members of the same evolutionary line?

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

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

EXERCISE 9: Introduction to the Animal Kingdom Part 2: Modes of Digestion and Respiration, and Rotifera, Platyhelminthes, Annelida, and Mollusca Pre-lab questions (due at the start of the lab period) 1. You will examine four different phyla this week. Which of these four are coelomates? Which of these four are pseudocoelomates? Which of these four are acoelomates? 2. Epithelial tissue can be found as six different types. Examine the table below and place an X in the cells box corresponding to the description(s). The first type has been done for you as an example. Square Tissue Type Single layer Multiple layers Thin/Flattened Elongated cells Simple cuboidal Stratified cuboidal Simple columnar Stratified columnar • Dratiets Punch Simple Squamous Stratified squamous X Cells X tead ka time sinal ice ho various body plans exhibited by members of the animal kingdom

Hello, good day. I have a problem answering this question, and I need your help. Hoping for a response, and thank you so much. Instruction: The answer must be in a minimum of 2 paragraphs, and each paragraph must have a minimum of 4 sentences.  Question: Give the Morphological characteristics of Aedes aegypti adults.

Briefly describe:A. cnidarian adaptations that illustrate their major evolutionary advancements past spongesB. the differences between cnidarians and ctenophores and  why ctenophores are evolutionarily more advanced than cnidarians

Nematode identity card. How are nematodes characterized according to examples of representing beings, basic morphology, type of symmetry, germ layers and coelom, digestive system, respiratory system, circulatory system, excretory system, nervous system and types of reproduction?

Q16, select all that apply

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