Which statement best describes the symmetry of brachiopods compared to bivalves?     Both symmetries are diagonal to the hinge     They are both asymmetrical     Brachiopod symmetry is perpendicular to the hinge; bivalve symmetry is parallel to the hinge     Brachiopod symmetry is parallel to the hinge; bivalve symmetry is perpendicular to the hinge

Q: Echinoderms have _____ symmetry as embryos and _____ symmetry as adults. a. radial; radial c.…

A: The group of eukaryotic, multicellular, and heterotrophic organisms is classified under the kingdom…

Q: 42.Ammonites are the dominant form of cephalopod in the Jurassic Select one : True False

A: Ammonoids are a group of extinct marine mollusc animals in the subclass Ammonoidea of the class…

Q: Based on the phylogenetic tree diagram in Figure 34.2, predict which vertebrate groups should have…

A: A phylogenetic tree is a branching diagrammatic representation of evolutionary relationships between…

Q: Mammals are farther removed from echinoderms in phylogenetic alliance as they do with birds. Yet…

A: Birds and Mammals are different from each other in many morphological characters such as body hair,…

Q: Which of the following are amniotes? Choose all that apply. Fish O Amphibians O Reptiles Birds…

A: This specialised membrane structures of certain tissues formed outside of the body of the embryo…

Q: One difference between the 'fishapod', Tikaalik, and the early tetrapod, Acanthostega, is... Group…

A: Tetrapod development began approximately 400 million years ago in the Devonian Period, with the…

Q: What characteristics is the ancestor of tetrapods thought to have had? Choose all that apply

A: Tetrapods  Tetrapods are the group of animals that have four legs. It the major group of animal and…

Q: Scales of modern teleosts differ from the ancestral state in that they _____.     are thicker and…

A: They are the members of actinopterygians.  They are marked by the body rays on their fins.…

Q: Which of the following list places the important evolutionary innovations in the correct order of…

A: A phylogeny example is the evolutionary tree of organism demonstrating the history of animal organs.…

Q: Echinoderms have _____. a. triangular symmetry b. radial symmetry c. hexagonal symmetry d.…

A: A major group of marine animals are echinoderms. They are known for their spine like skin. These…

Q: An organism classified in phylum Mollusca that is a predator with tentacles, a brain and complex…

A: Note: We’ll answer the first question since the exact one wasn’t specified. Please submit a new…

Q: What are the ecological roles of hexapods and myriapods? Cite some examples of ecologically…

A: Introduction :- Ecology is the study of interaction among the living organisms and with their…

Q: Which of the following features do sponges lack that some other animals have? (a) segmented body…

A: 5 kingdom classifications is a type of classification in which living organisms are classified into…

Q: You find a polychaete in the lower Chesapeake Bay and discover that its coelom is unpartitioned. You…

A: Introduction Polychaeta, Often Known As Bristle Worms Or Polychaetes, Is A Paraphyletic Class Of…

Q: Which of the following is NOT a tetrapod? Group of answer choices Lungfish Snake Legless lizard…

A: Gnathostomes are group of vertebrates , which have jaws . this division is divided into pisces and…

Q: What are shared characteristics that are found in clams? Notable cephalization O Coelomates…

A: Clam is a common name for several kinds of bivalve molluscs. The word is often applied only to those…

Q: Based on the tree below, what is the sister taxon of iguanid? -Spherada rOibamidae LGekota r…

A: A phylogenetic tree is a branching diagram or a tree showing the evolutionary relationships among…

Q: During chordate evolution, what is the sequence (from earliest to most recent) in which the…

A: To find What is the sequence in which the following structures evolved in chordate evolution?

Q: origin of tetrapods.

A: Answer: All tetrapod limbs have a common pattern of one bone, two bones, many bones, then digits.…

Q: illustrates four key characters ofchordates: a notochord; a dorsal, hollow nerve cord; pharyngeal…

A: A chordate is an animal of the phylum Chordata. During some period of their life cycle, chordates…

Q: Which group of echinoderms usually posses pentameric antimeres but some species may have more? A.…

A: Echinodermate's term was coined by J. Klein. These are exclusively marine organisms falling in the…

Q: SO you wish to be a chordate do you? Which of the following are not essential to that distinction? O…

A:

Q: CHARACTER/ANIMAL PHARYNGEAL VERTEBRAE PAIRED SLITS AND SWIM APPENDAGES MUSCULAR SUCKER- FINS WITH…

A: Cladogram is a diagrammatic illustration which represents how the taxons are closely related to each…

Q: Which statement below is false given the tree below? Pisces Osteichthyes (bony fishes) Sarcopterygii…

A: In the living world, we see a large number of microorganisms, animals and plants. These organisms…

Q: Coelomates have an enclosed coelom completely lined with mesodermally derived tissue. Accelomates…

A: Triploblastic animals are animals with a body cavity and body plan, where their body cavities are…

Q: A radula in a gastropod is     a female reproductive structure     A sharp, tooth like structure…

A: Step 1 Gastropods are commonly known as snails and slugs, belonging to a large taxonomic class of…

Q: Sharks are chordates that possess which of the following Group of answer choices jaws an air sac…

A: Chordata has a place in the Kingdom Animalia and incorporates every one of the vertebrates, i.e.,…

Q: Match the benefit to the correct chordate adaptation. (match each number to the correct letter)…

A: Evolution is a continuous process and we are still evolving. Evolution is nothing but adapting to…

Q: Which of the following options represent examples of deuterostomes? [check all that apply]. Mammals…

A: On the basis of formation of mouth, animals can be deuterostomes and protostomes.

Q: Describe the forams and actinopods, and explain why many biologists classify them in the rhizarian…

A: Introduction The Rhizaria are a nebulous supergroup of primarily unicellular eukaryotes with a large…

Q: is the presence of notochord considered as plesiomorphic character chordates? yes or no?

A: no,the presence of notochord are not considered as plesiomorphic character chordates. It is…

Q: Are snakes tetrapods? Explain.

A: Tetrapods includes land vertebrates with two pairs of pentadactyl limbs, cornified skin and lungs.…

Q: How does Anterior posterior axis gives chordate and higher non chordates a bilateral symmetry

A: Organisms having bilateral symmetry have a single plane of symmetry. The plane is called sagittal…

Q: What best describes frogs in terms of development

A: Frogs belong to the phylum Chordata and class amphibians. All amphibians are bilaterally symmetrical…

Q: What phylum is a ray in? Group of answer choices Chondrichthyes Echinodermata Osteichthyes Reptilia…

A: The ray or stingray is a cartilaginous fish that has cartilaginous endoskeleton structure. They are…

Q: Describe ways in which amniotes are more functionally or structur-ally suited for terrestriality…

A: Amniotes can be defined as the clade of tetrapod vertebrates which comprise the reptile, birds, and…

Q: How are the dorsal and ventral surfaces differentiated in a preserved, adult earthworm? The dorsal…

A: The earthworm is the nocturnal crawling organism that belongs to phylum Annelida. The earthworm has…

Q: Which of the following statements regarding dipnoi (lungfish) is true?     amniotes share a more…

A: Lungfish are freshwater  rhipidistian vertebrates belonging to the order Dipnoi. Lungfish are best…

Q: “Fishapod” (or stem tetrapod) traits include everything except: Neck   Differentiated limb bones…

A: Tiktaalik roseae or Fishapod is considered to be the intermediate fossil between the fish and the…

Q: What is the importance of torsion and shell coiling in gastropods along with their evolution?…

A: Torsion is the process in which the mantle cavity twists 180 degree with respect to the head and…

Q: Which of the following statements is correct for all amniotes?   A. They have internal…

A: They include reptiles, birds and mammals. They have three membranes amnion, chorion and allantois…

Q: All insects have jointed appendages and radula. have exoskeletons or cuticles. undergo complete…

A: The answer is option B - have exoskeletons or cuticles. The insect exoskeleton is the external…

Q: Which of the following is true of cephalopod molluscs: arms image forming eyes trochophore larva…

A: Cephalopod virtually suggests that “head foot” in Greek, a respect to the method the cephalopod's…

Q: Refer to the diagram below. What characteristic is shared by amphibians, birds, reptiles, and…

A: The animal ‘Vertebrate’ is also known by the name ‘Craniata’. They mainly have the backbone from…

Q: Sessile adult tunicates lose the notochord; what does this suggest about one function of this…

A: A tunicate larva has the notochord, nerve cord, and tail. After few days of swimming after hatching,…

Q: CHARACTER/ANIMAL PHARYNGEAL VERTEBRAE PAIRED SWIM APPENDAGES MUSCULAR SUCKER- FINS WITH MUSCULAR…

A:

Q: How did the characteristic differences between aquatic and terres-trial environments influence the…

A: The basic differences that animal are required to accommodate while moving from water to land are…

Q: Which of the following is not a characteristic found in sea stars? Walking on tube feet An…

A: Echinodermata  All are marine. Generally live at bottom and slow moving. Body shape is star like,…

Q: Match the benefit to the correct chordate adaptation. allows organisms to walk on land [Choose]…

A: Chordates are organism that possess an vertebral column extending from neck to back region.

Q: How does segmentation enhance annelid locomotion? a. Segmentation creates repeating body structures…

A: Ringed worm, earthworm, leeches etc. fall in the annelids category. Segmentation means division of…

Animal Phylogeny

Cladistics is a method of biological classification where organisms are classified based on their ancestors and their relationship with them. It is defined as the concepts and methods for determining the branching patterns of evolution and evolutionary history. Some scientists, however, have preferred the term phylogenetic systematics or phylogenetic taxonomy to emphasize the reliance on a phylogeny for classification. It is the most common and accepted method for classifying organisms.