CHAPTER 33
... ° The eggs are retained, but sperm are carried out the osculum by the water current. ° Sperm are drawn into neighboring individuals and fertilize eggs in the mesohyl. ° The zygotes develop into flagellated, swimming larvae that disperse from the parent. ° When a larva finds a suitable substratum, it ...
... ° The eggs are retained, but sperm are carried out the osculum by the water current. ° Sperm are drawn into neighboring individuals and fertilize eggs in the mesohyl. ° The zygotes develop into flagellated, swimming larvae that disperse from the parent. ° When a larva finds a suitable substratum, it ...
powerpoint note presentation
... accelerated rapidly from 525-535 million years ago, during the Cambrian period. – Because so many animal body plans and new phyla appear in the fossils from such an evolutionarily short time span, biologists call this episode the Cambrian explosion. ...
... accelerated rapidly from 525-535 million years ago, during the Cambrian period. – Because so many animal body plans and new phyla appear in the fossils from such an evolutionarily short time span, biologists call this episode the Cambrian explosion. ...
Module 4 : Marine Invertebrates
... 26°C and 27°C. Temperatures above 29°C cause the stressed coral polyps to actively expel the algae giving the coral a bleached appearance. Bleached corals have difficulty recovering; a reef can take years to recover, and subsequent bleaching incidents may make it impossible. Without their symbiotic ...
... 26°C and 27°C. Temperatures above 29°C cause the stressed coral polyps to actively expel the algae giving the coral a bleached appearance. Bleached corals have difficulty recovering; a reef can take years to recover, and subsequent bleaching incidents may make it impossible. Without their symbiotic ...
29–2 Form and Function in Invertebrates To survive
... dioxide with the environment. The more surface area that is exposed to the environment, the greater the amount of gas exchange that can occur. In addition, gases diffuse most efficiently across a thin, moist membrane. Given these principles, all respiratory systems share two basic features. Respirat ...
... dioxide with the environment. The more surface area that is exposed to the environment, the greater the amount of gas exchange that can occur. In addition, gases diffuse most efficiently across a thin, moist membrane. Given these principles, all respiratory systems share two basic features. Respirat ...
Chapter 2: The Animal Kingdom
... 1. The hard outer covering that protects an invertebrate’s body is its _____________________ . A. backbone B. endoskeleton C. exoskeleton D. echinoderm ...
... 1. The hard outer covering that protects an invertebrate’s body is its _____________________ . A. backbone B. endoskeleton C. exoskeleton D. echinoderm ...
phylum: annelida - Two Oceans Aquarium
... 26°C and 27°C. Temperatures above 29°C cause the stressed coral polyps to actively expel the algae giving the coral a bleached appearance. Bleached corals have difficulty recovering; a reef can take years to recover, and subsequent bleaching incidents may make it impossible. Without their symbiotic ...
... 26°C and 27°C. Temperatures above 29°C cause the stressed coral polyps to actively expel the algae giving the coral a bleached appearance. Bleached corals have difficulty recovering; a reef can take years to recover, and subsequent bleaching incidents may make it impossible. Without their symbiotic ...
Animal Phyla Lab - Biology Junction
... skin. This tough body is how they get their name- Echinoderms (echino-spiny, derm-skin). Echinoderms are exclusively marine animals. This phylum includes sea stars, sea lilies, urchins, sea cucumbers, sand dollars and brittle stars. Echinoderms do not have a bilateral body plan with a distinct head ...
... skin. This tough body is how they get their name- Echinoderms (echino-spiny, derm-skin). Echinoderms are exclusively marine animals. This phylum includes sea stars, sea lilies, urchins, sea cucumbers, sand dollars and brittle stars. Echinoderms do not have a bilateral body plan with a distinct head ...
Lab 6: An Introduction to Animal Diversity
... general agreement among taxonomists exists for only approximately 33 or 34. In today’s lab, we will examine only some of those. At the end of today’s lab you should be able to name these phyla, their general characteristics and be able to accurately place specimens into their correct phyla. In a few ...
... general agreement among taxonomists exists for only approximately 33 or 34. In today’s lab, we will examine only some of those. At the end of today’s lab you should be able to name these phyla, their general characteristics and be able to accurately place specimens into their correct phyla. In a few ...
1 Evolution of Animal Diversity
... 4Deuterostome coelomates represented by – phylum Echinodermata - sea lillies, sea stars, sea urchins, sea cucumbers (~6,000 species) – phylum Hemichordata - acorn worms (~90 species) – phylum Chordata - chordates (~42,500 species) • subphylum Urochordata - tunicates • subphylum Cephalochordata - lan ...
... 4Deuterostome coelomates represented by – phylum Echinodermata - sea lillies, sea stars, sea urchins, sea cucumbers (~6,000 species) – phylum Hemichordata - acorn worms (~90 species) – phylum Chordata - chordates (~42,500 species) • subphylum Urochordata - tunicates • subphylum Cephalochordata - lan ...
Chapter Introduction Lesson 1 What defines an animal? Lesson 2
... Your Turn: Worksheet Questions 1: Classification groups similar organisms together by structure, chemical make-up, food needs, and behavior 2a. Life scientists use a classification system based on Six categories called Kingdoms. 2b. This question is talking about the 6 kingdoms. List those on your a ...
... Your Turn: Worksheet Questions 1: Classification groups similar organisms together by structure, chemical make-up, food needs, and behavior 2a. Life scientists use a classification system based on Six categories called Kingdoms. 2b. This question is talking about the 6 kingdoms. List those on your a ...
Animals III
... Unique group of embryonic cells that participate in the development of various structures. (Ex. teeth, some bones and cartilage of the skull, inner layer of skin in facial region (dermis), some types of neurons, sensory capsules for eyes and other sense organs) ...
... Unique group of embryonic cells that participate in the development of various structures. (Ex. teeth, some bones and cartilage of the skull, inner layer of skin in facial region (dermis), some types of neurons, sensory capsules for eyes and other sense organs) ...
Animal Diversity Background
... degree of evolutionarily adaptability and their great mobility, including for some the ability to fly. Two out of every three known species are arthropods! The arthropod body is covered by an exoskeleton made of layers of protein and chitin, a polysaccharide. The arthropod body is typically divided ...
... degree of evolutionarily adaptability and their great mobility, including for some the ability to fly. Two out of every three known species are arthropods! The arthropod body is covered by an exoskeleton made of layers of protein and chitin, a polysaccharide. The arthropod body is typically divided ...
Chapter 25
... Digestive cavity has only one opening for both ingestion and egestion so food cannot be processed continuously Have solid body and no room for true digestive or respiratory systems to circulate food or oxygen Flatworms have solved this problem in a unique way They body is so flat and thin that many ...
... Digestive cavity has only one opening for both ingestion and egestion so food cannot be processed continuously Have solid body and no room for true digestive or respiratory systems to circulate food or oxygen Flatworms have solved this problem in a unique way They body is so flat and thin that many ...
204_08Animals2
... -Cephalothorax (head and thorax as one region) with six pairs of appendages: chelicerae (a pair of clawlike feeding appendages), pedipalps (a pair of appendages usually functioning in sensing or feeding) and four pairs of legs. ...
... -Cephalothorax (head and thorax as one region) with six pairs of appendages: chelicerae (a pair of clawlike feeding appendages), pedipalps (a pair of appendages usually functioning in sensing or feeding) and four pairs of legs. ...
Document
... from most other flatworms because they A. live freely on land. B. live freely in fresh and salt water. C. are marine parasites. D. are land-dwelling parasites. ...
... from most other flatworms because they A. live freely on land. B. live freely in fresh and salt water. C. are marine parasites. D. are land-dwelling parasites. ...
Chapter 33 – Invertebrates
... Flatworms and other bilaterians are triploblastic, with a middle embryonic tissue layer, a mesoderm, which contributes to more complex organs and organ systems and to true muscle tissue. ...
... Flatworms and other bilaterians are triploblastic, with a middle embryonic tissue layer, a mesoderm, which contributes to more complex organs and organ systems and to true muscle tissue. ...
Chapter 9 – Multicellular and Tissue Levels of Organization
... E. Are animals polyphyletic or monophyletic? The nearly simultaneous appearance of all animal phyla in the early Cambrian makes it hard to tell II. Phylum Porifera - Sponges A. Primarily marine animals that consist of loosely organized cells B. Characteristics of members of Phylum Porifera C. Cell t ...
... E. Are animals polyphyletic or monophyletic? The nearly simultaneous appearance of all animal phyla in the early Cambrian makes it hard to tell II. Phylum Porifera - Sponges A. Primarily marine animals that consist of loosely organized cells B. Characteristics of members of Phylum Porifera C. Cell t ...
chordate-plan 266 kb chordate
... primitive axis of the embryo and is derived from mesoderm. In most vertebrates the notochord develops into the vertebral column although some (inlc. hagfish, lampreys, coelacanths and lungfish) retain a post-embryonic notochord. Other important chordate characteristics include a dorsal nerve cord, a ...
... primitive axis of the embryo and is derived from mesoderm. In most vertebrates the notochord develops into the vertebral column although some (inlc. hagfish, lampreys, coelacanths and lungfish) retain a post-embryonic notochord. Other important chordate characteristics include a dorsal nerve cord, a ...
chapter 33
... Despite their apparent differences, all molluscs have a similar body plan with a muscular foot (typically for locomotion), a visceral mass with most of the internal organs, and a mantle. The mantle, which secretes the shell, drapes over the visceral mass and creates a water-filled chamber, the man ...
... Despite their apparent differences, all molluscs have a similar body plan with a muscular foot (typically for locomotion), a visceral mass with most of the internal organs, and a mantle. The mantle, which secretes the shell, drapes over the visceral mass and creates a water-filled chamber, the man ...
33_DetailLectOutjk_AR
... Despite their apparent differences, all molluscs have a similar body plan with a muscular foot (typically for locomotion), a visceral mass with most of the internal organs, and a mantle. The mantle, which secretes the shell, drapes over the visceral mass and creates a waterfilled chamber, the mant ...
... Despite their apparent differences, all molluscs have a similar body plan with a muscular foot (typically for locomotion), a visceral mass with most of the internal organs, and a mantle. The mantle, which secretes the shell, drapes over the visceral mass and creates a waterfilled chamber, the mant ...
Chapter-23
... • Multicelled heterotrophs (ingest other organisms) • Grow and develop through a series of stages • Actively move about during all or part of life cycle ...
... • Multicelled heterotrophs (ingest other organisms) • Grow and develop through a series of stages • Actively move about during all or part of life cycle ...
Kingdom Animalia - hrsbstaff.ednet.ns.ca
... animals, it's hard to imagine what they all might have in common. First, animals are multicellular. This means they are made of many cells, unlike bacteria, which are made of only one cell. Second, all animals are heterotrophs; they must get their food by eating other organisms, such as plants, fung ...
... animals, it's hard to imagine what they all might have in common. First, animals are multicellular. This means they are made of many cells, unlike bacteria, which are made of only one cell. Second, all animals are heterotrophs; they must get their food by eating other organisms, such as plants, fung ...
Introduction to Animals - Kent City School District
... reduced and is internal. • In octopuses, the shell is entirely absent. • Octopuses have a highly developed nervous system with a large, complex brain. ...
... reduced and is internal. • In octopuses, the shell is entirely absent. • Octopuses have a highly developed nervous system with a large, complex brain. ...
Invertebrate
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Invertebrates are animals that neither possess nor develop a vertebrae (vertebral column) , derived from the notochord. This includes all animals apart from the subphylum Vertebrata. Familiar examples of invertebrates include insects, crabs, lobsters and their kin, snails, clams, octopuses and their kin, starfish, sea-urchins and their kin, and worms.The majority of animal species are invertebrates. One estimate puts the figure at 97%. Many invertebrate taxa have a greater number and variety of species than the entire subphylum of Vertebrata.Some of the so-called invertebrates, such as the Chaetognatha, Hemichordata, Tunicata and Cephalochordata are more closely related to the vertebrates than to other invertebrates. This makes the term ""invertebrate"" almost meaningless for taxonomic purposes.