Place the following life stages in order from youngest (1) to oldest (5). glochidium in host gill adult glochidium in marsupium embryo juvenile mussel
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Place the following life stages in order from youngest (1) to oldest (5).
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glochidium in host gill
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adult
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glochidium in marsupium
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embryo
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|
juvenile mussel
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- Give the order for the life cycle of the hydrozoan, Obelia, starting with the polyp form. Answers Growth into mature polyp Cells grow into Planula. Reproductive polyps form. Medusa buds. Meiosis occurs. Fertilization occurs.Complete the following table correctly regarding the number of PAIRS of antennae usually found in each of the following taxa: Crustacea=__1__ Chelicerata=__2__ Insecta=__3__ _______Group of answers -1 is 1; 2 is 2; 3 is 3 -1 is 3; 2 is 0; 3 is 2 -1 is 2; 2 is 0; 3 is 1 -1 is 2; 2 is 1; 3 is 3 -1 is 0; 2 is 2; 3 is1Match the description given with either protostome or deuterostome or neither 1)spiral cleavage 2)blastopore becomes the anus 3)schizocoelous coelom formation 4)indeterminate cleavage 5)determinate cleavage 6)blastopore becomes the primitive streak 7)radial cleavage 8)enterocoelous coelom formation
- Coelomates have an enclosed coelom completely lined with mesodermally derived tissue. Accelomates have an enclosed coelom partially lined with mesodermally derived tissue. Pseudocoelomates have no enclosed coelom. true or falseAnswer the following questions briefly but concise: 1. Compare the memebers of the Class Solenogastres to the generalized Molluscan body form. 2.Compare the memebers of the Class Scaphopoda to the generalized Molluscan body form.Which of the following has indeterminate development? Echinodermata Nematoda Arthropoda Platyhelminthes
- Match the following:(a) Operculum (i) Ctenophora(b) Parapodia (ii) Mollusca(c) Scales (iii) Porifera(d) Comb plates (iv) Reptilia(e) Radula (v) Annelida(f ) Hairs (vi) Cyclostomata and Chondrichthyes(g) Choanocytes (vii) Mammalia(h) Gill slits (viii) OsteichthyesWhich of the following classes of animals possess an aristotle's lantern feeding structure that is used for scraping up algae and other food items? -Class Ophiuroidea -Class Cephalaspidomorphi/Hyperoartia -Class Holothuroidea -Class Echinoidea -Class Asteroideaa desert millipede is an invertebrate, explain the mechanism of their protective structure. provide scientific explanation please do not just copy from google please do not copy from other answers here, i need other answers
- What structure differentiates Ectoprocts and Brachiopods from other Lophotrochozoa? Select one: 1-Complete digestive tract with two openings. 2- Fluid-filled coelom. 3- Triploblastic. 4- Suspension feeding via lophophore. 5- Trochophore larval stage. Please provide explanations in detail for the correct option as well as the incorrect options.Aquatic molluscs have a blood vascular system & metanephridia so they must also possess an unpartitioned coelom secretion kidneys terminal cells a partitioned coelom If a respiratory pigment such as hemoglobin or hemocyanin is not present in blood the blood would not carry carbon dioxide the blood would not carry oxygen the blood would have decreased oxygen carrying capacityAn unidentified animal is noted to possess the following characteristics: triploblastic eucoelomate body a cuticle that is shed via ecdysis To which of the following phyla does this organism belong? Group of answer choices A. Echinodermata B. Annelida C. Arthropoda D. Nematoda