Which of the following characteristics is/are associated with amphibians? (a) amnion (b) placoid scales (c) heart with two complete ventricles (d) swim bladder (e) metamorphosis
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Which of the following characteristics is/are associated with amphibians? (a) amnion (b) placoid scales (c) heart with two complete ventricles (d) swim bladder (e) metamorphosis
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- Living vertebrates can be divided into two majorclades. Select the appropriate pair.(A) the chordates and the tetrapods(B) the urochordates and the cephalochordates(C) the cyclostomes and the gnathostomes(D) the marsupials and the eutheriansIn vertebrates, what anatomical structure partially or completely replaces the notochord? 1.) lateral-line system 2.) cartilage or a bony skeleton 3.) endostyle 4.) dorsal hallow nerve cordWhich of the following is the correct classification for the following chordate animal: These animals are chordates but do not have a backbone or cranium. They have all five features of chordates into adulthood. The notochord extends into its head. Question 27 options: a) Birds b) Anura / Frogs c) Urodela / Salamanders d) Superclass Agnatha e) Monotreme f) Eutharia g) Reptiles (non avian) h) Class Chondrichthyes i) Cephalochordata j) Class Osteichthyes k) Marsupial
- Which of the following is the correct classification for the following chordate animal: This is a tetrapod vertebrate that may live its live partly in water and partly on land (some species fully aquatic). These animals have a tail and most of them are lungless. They respire through their skin or gills. Question 28 options: a) Class Chondrichthyes b) Monotreme c) Cephalochordata d) Reptiles (non avian) e) Birds f) Urodela / Salamanders g) Anura / Frogs h) Eutharia i) Class Osteichthyes j) Marsupial k) Superclass AgnathaVertebrates and tunicates share(A) jaws adapted for feeding.(B) a high degree of cephalization.(C) an endoskeleton that includes a skull.(D) a notochord and a dorsal, hollow nerve cordThe epitheliomuscular cells found in cnidarians anticipate the muscular system of more complex animals. The absence of muscle tissue in cnidarians primarily reflects... A. The fact that cnidarians are basal metazoans, having specialised cells but lacking tissues B. The presence of only two germ layers, ectoderm and endoderm, in cnidarian embryos C. The fact that cnidarians lack a nervous system D. The sessile lifestyle observed in all cnidarians E. All of the above explain the absence of muscle tissue in cnidarians
- Put the following milestones in animal evolution in orderfrom oldest to most recent: (a) origin of mammals,(b) earliest evidence of terrestrial arthropods, (c) Ediacaranfauna, (d) extinction of large, nonflying dinosaurs.Which of the following statements about bilaterian animals is false? A. Many bilaterians are invertebrates but some are not. B. All bilaterians are triploblastic (have three germ layers). C. All bilaterians have bilateral symmetry. D. Most bilaterians have tissues but some do not.An important evolutionary innovation and a major difference between the limbs of extant lobe-finned fish and extant tetrapods is: Select one: 1. The presence of lobes on the fish fins. 2. Retention of fin rays in tetrapod limbs. 3. Limbs of tetrapods have associated muscles. 4. Limbs are supported by a single basal bone in tetrapods 5. Attachment of the pelvic limbs to the vertebral column via the pelvis in tetrapods. Please consider providing a detailed explanation of correct as well as incorrect options.
- An important evolutionary innovation and a major difference between the limbs of extant lobe-finned fish and extant tetrapods is: Select one: 1. The presence of lobes on the fish fins. 2. Retention of fin rays in tetrapod limbs. 3. Limbs of tetrapods have associated muscles. 4. Limbs are supported by a single basal bone in tetrapods 5. Attachment of the pelvic limbs to the vertebral column via the pelvis in tetrapods. Please explain in detail the correct options as well as the incorrect options.Which of the following is the correct classification for this chordate animal: This vertebrate starts its life cycle in the water in a form without legs. the adult form is a tetrapod and lives mostly on land. These animals do not have a tail and they are specialized for movement like jumping to capture prey. Question 26 options: a) Birds b) Cephalochordata c) Monotreme d) Class Chondrichthyes e) Urodela / Salamanders f) Anura / Frogs g) Eutharia h) Reptiles (non avian) i) Marsupial j) Superclass Agnatha k) Class OsteichthyesNematodes and nematomorphs have which type(s) of skeletal system? a.) Endoskeleton b.) Endoskeleton and hydrostatic skeleton c.) Endoskeleton and exoskeleton d.) Exoskeleton and hydrostatic skeleton e.) Exoskeleton f.) Hydrostatic skeleton