Concept explainers
To identify:
The criteria that can be used to identify differences between animals and another organism.
Introduction:
Animals can be classified from other organisms based on the similarities and differences among them. Animals are extremely diverse in size, habitat, body form, and intelligence. The first animals arose about 570 million years ago (MYA).
To determine:
The criteria that can be used to identify differences between vertebrates and invertebrates.
Introduction:
Animals are mainly classified into two groups: Vertebrates and Invertebrates. Invertebrates and vertebrates are diverse in various groups.
To determine:
The criteria that can be used to identify the differences between protostomes from deuterostomes.
Introduction:
Animals are multicellular eukaryotic organisms. Animals are heterotrophic organisms and will depend on plants and other animals for nutrition. Animals can be divided into protostomes and deuterostomes.
To determine:
The criteria that can be used to identify the differences between ectotherms and endotherms.
Introduction:
Animals have several distinguishing characteristics that set them apart from other organisms. All animals are composed of cells, extracellular matrix, and glycoproteins. Animals can be classified into ectotherms and endotherms.
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BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
- Suppose you discover a new species of animal that does not have body segments, but is triploblastic, coelomate, and cephalized. Under the molecular phylogenetic scheme, you would allocate it to which phylum? A)Platyhelminthes. B)Arthropoda. C)Nematoda. D)Mollusca. E)Echinodermata.arrow_forwardDistinguish between (a) radial and bilateral symmetry; (b) blastula andgastrula; (c) direct and indirect development; (d) complete andincomplete digestive tracts; (e) coelom and pseudocoelom.arrow_forwardWhich of the following statements regarding the diversification of animals is supported by the current available evidence? a) most animals belong to the clade Bilateria b) sponges are a paraphyletic group of organisms c) ctenophores are basal metazoans d) animals descended from multiple ancestorsarrow_forward
- Sponges (Phylum Porifera) are the basal taxon to animals and were once thought to belong to plants. 1) Identify three characteristics that distinguish sponges from plants. 2) Identify three characteristics (present or absent) that distinguish sponges from other animal taxa.arrow_forwardThe distinction between sponges and other animal phyla is based mainly on the absence versus the presence of (A) a body cavity. (B) a complete digestive tract. (C) mesoderm. (D) tissues.arrow_forwardIn 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 cordarrow_forward
- You take a field trip to tide pools in Puget Sound and encounter all sorts of Animals. Please use the following descriptions of those adult Animals to determine which of the 9 major phyla each belongs. Has radial symmetry and two tissue layers: ["cnidaria", "Mollusca", "Arthropoda", "Annelida", "Platyhelminthes", "Porifera"] Has 6 jointed appendages and a chitinous exoskeleton: ["cnidaria", "Mollusca", "Arthropoda", "Annelida", "Platyhelminthes", "Porifera"] Has bilateral symmetry with a digestive sac and no coelom: ["cnidaria", "Mollusca", "Arthropoda", "Nematoda", "Platyhelminthes", "Porifera"] Has bilateral symmetry, an open circulatory system, a digestive tube, gills and a radula: ["cnidaria", "Mollusca", "Arthropoda", "Nematoda", "Platyhelminthes", "Porifera"] Has no true tissues and no body symmetry: ["cnidaria", "Mollusca", "Arthropoda", "Nematoda", "Platyhelminthes", "Porifera"]arrow_forwardWhich of the following are tetrapods? Group of answer choices A, B, C, and D B, C, D, and E D) mammals E) birds C) reptiles B) amphibians B, C, and D A) fisharrow_forwardWhich of the following is the correct classification for the following invertebrate animal: These animals are long and segmented and have no appendages. They are covered by a protective cuticle and have a closed circulatory system. Question 20 options: a) Phylum Echinodermata b) Phylum Mollusca, Class Bivalvia c) Phylum Chordata d) Phylum Annelida e) Phylum Platyhelminthes f) Phylum Arthropoda, subphylum Hexapoda g) Phylum Echinodermata Previous PageNext Pagearrow_forward
- 1 explain the meaning of the following characteristics of animals a)triploblastic b)bilateral symmetry c)segmentation d) acoelomate e)cephalisationarrow_forwardthe animal kingdom was divided into 5 main clades. Which clade has animals without true tissues Question 7 options: a) Cnidaria b) Porifera c) Bilateria d) Ctenophoraarrow_forward1. Classify jellyfish and ant based on the following characteristics: a) body symmetry b) number of germ layers during embryonic development c) body plan if triploblastic (coelomate, acoelomate, pseudocoelomate) d) Mechanism of coelom formation, if coelomate e) the origin of mouth? f) symmetry of cleavage? g) cleavage pattern, determinate or indeterminate? h) protostome or deuterostome? 2. Support your answers on number 1.arrow_forward
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