Overview of Invertebrates
... _____ 3. A psuedocoelom refers to concentration of nervous tissue at one end of the animal. _____ 4. Some invertebrates move, but cannot regulate which direction they move or how fast they move. _____ 5. A larva is a juvenile stage of the life cycle. _____ 6. A bilaterally symmetrical invertebrate h ...
... _____ 3. A psuedocoelom refers to concentration of nervous tissue at one end of the animal. _____ 4. Some invertebrates move, but cannot regulate which direction they move or how fast they move. _____ 5. A larva is a juvenile stage of the life cycle. _____ 6. A bilaterally symmetrical invertebrate h ...
Water Bug Detective Guide-A3
... • larva hangs upside down, suspended from water surface • pupa are enclosed in a cocoon that covers half the body Size: Up to 8 mm long ...
... • larva hangs upside down, suspended from water surface • pupa are enclosed in a cocoon that covers half the body Size: Up to 8 mm long ...
Overview of Invertebrates
... Write true if the statement is true or false if the statement is false. _____ 1. An earthworm is an example of a segmented invertebrate. _____ 2. Invertebrates with an incomplete digestive system starve, because their food cannot be completely digested. _____ 3. A psuedocoelom refers to concentratio ...
... Write true if the statement is true or false if the statement is false. _____ 1. An earthworm is an example of a segmented invertebrate. _____ 2. Invertebrates with an incomplete digestive system starve, because their food cannot be completely digested. _____ 3. A psuedocoelom refers to concentratio ...
Document
... 1. Which of the following is not a characteristic of most members of the phylum Annelida? a. hydrostatic skeleton b. segmentation c. pseudocoelom d. closed circulatory system e. all of the above are characteristics of Annelida 2. Which phylum is characterized by animals that have a segmented body? a ...
... 1. Which of the following is not a characteristic of most members of the phylum Annelida? a. hydrostatic skeleton b. segmentation c. pseudocoelom d. closed circulatory system e. all of the above are characteristics of Annelida 2. Which phylum is characterized by animals that have a segmented body? a ...
Position in Animal Kingdom
... Two major morphological types are polyp and medusa, but there can be many different types of polyp in a colony creating polymorphic colonies. ...
... Two major morphological types are polyp and medusa, but there can be many different types of polyp in a colony creating polymorphic colonies. ...
The Metazoa
... Single layer of tissue (collared cells) Sponges also have collared cells, but these form a larger, integrated structure supported by rigid spicules or organic tissue. The differentiation of cells required the evolution of Hox Genes (genes that dictate differing functions of cells) ...
... Single layer of tissue (collared cells) Sponges also have collared cells, but these form a larger, integrated structure supported by rigid spicules or organic tissue. The differentiation of cells required the evolution of Hox Genes (genes that dictate differing functions of cells) ...
six key transitions in body plan
... approximate mirror images. • Bilateral symmetry is a body plan with distinct right and left halves that are mirror images. • The plan allows for specialization among body regions and more efficient movement. ...
... approximate mirror images. • Bilateral symmetry is a body plan with distinct right and left halves that are mirror images. • The plan allows for specialization among body regions and more efficient movement. ...
Classifying animals
... • Multicellular and some have specialized tissues and organs • Cells lack cell walls. Most reproduce sexually and produce an embryo. ...
... • Multicellular and some have specialized tissues and organs • Cells lack cell walls. Most reproduce sexually and produce an embryo. ...
Kingdom Animalia pp
... Crustaceans (lobster, crab, shrimp) Chelicerates (spiders, mites, scorpions) Insects (most number of animal species, butterflies, bees, ants) ...
... Crustaceans (lobster, crab, shrimp) Chelicerates (spiders, mites, scorpions) Insects (most number of animal species, butterflies, bees, ants) ...
flatworm
... There is also no true body cavity (coelom) except the gut and hence they are acoelomates. The interior of the acoelomate body is filled with somewhat loosely spaced mesodermal tissue called parenchyma tissue. There is no true circulatory or respiratory system, but like all other animals, flatworms d ...
... There is also no true body cavity (coelom) except the gut and hence they are acoelomates. The interior of the acoelomate body is filled with somewhat loosely spaced mesodermal tissue called parenchyma tissue. There is no true circulatory or respiratory system, but like all other animals, flatworms d ...
Ch. 25
... • the evolution of a body cavity was an important step in animal evolution this internal space allowed for the support of organs, distribution of materials, and coordination of development for example, the digestive tract can be larger and longer ...
... • the evolution of a body cavity was an important step in animal evolution this internal space allowed for the support of organs, distribution of materials, and coordination of development for example, the digestive tract can be larger and longer ...
Kingdom Animalia
... sperm are released into the water; large numbers of eggs • Internal fertilization- eggs are fertilized by sperm inside the mother’s body; fewer numbers of ...
... sperm are released into the water; large numbers of eggs • Internal fertilization- eggs are fertilized by sperm inside the mother’s body; fewer numbers of ...
Animal Quiz
... 1. Which of the following is not a characteristic of most members of the phylum Annelida? a. hydrostatic skeleton b. segmentation c. pseudocoelom d. closed circulatory system e. all of the above are characteristics of Annelida 2. Which phylum is characterized by animals that have a segmented body? a ...
... 1. Which of the following is not a characteristic of most members of the phylum Annelida? a. hydrostatic skeleton b. segmentation c. pseudocoelom d. closed circulatory system e. all of the above are characteristics of Annelida 2. Which phylum is characterized by animals that have a segmented body? a ...
Page 4
... V-shaped markings on the top of its bell-shaped body and a “frill” of brown markings around its edge. It has 24 tentacles that are arranged in groups, as well as four very long and “frilly” mouth arms and eight ...
... V-shaped markings on the top of its bell-shaped body and a “frill” of brown markings around its edge. It has 24 tentacles that are arranged in groups, as well as four very long and “frilly” mouth arms and eight ...
1 - BrainMass
... with fluid, it allows fluid circulation, even in primitive animals that lack circulatory systems. ...
... with fluid, it allows fluid circulation, even in primitive animals that lack circulatory systems. ...
Chapter 18 The Phyla - Not covered in class
... d. Amphibians evolved from fish around 350 million years ago - first terrestrial vertebrates - amphibios, “living a double life” in Greek - most live in close association with water - typically simple lungs or gills supplemented with skin-breathing ...
... d. Amphibians evolved from fish around 350 million years ago - first terrestrial vertebrates - amphibios, “living a double life” in Greek - most live in close association with water - typically simple lungs or gills supplemented with skin-breathing ...
Model Answer (AS-2891)
... strobilus. Immature proglottides are transverse rectangle, located in the anterior part of the body and inner organs are developing. Mature proglottides are square in shape and located in the mid part of the body and have 150-200 testes, a centrally straight uterus, 3 lobes of ovary and a vitelline ...
... strobilus. Immature proglottides are transverse rectangle, located in the anterior part of the body and inner organs are developing. Mature proglottides are square in shape and located in the mid part of the body and have 150-200 testes, a centrally straight uterus, 3 lobes of ovary and a vitelline ...
Lecture 5
... Salticidae {Jumping Spiders} predatory spiders with good vision, used to leap accurately onto prey – no webs but use silk in safety line and refugia Spiders have flexor muscles across the dicondylic joints of their legs but no antagonistic extensor leg muscles; so when a jumping spider jumps it does ...
... Salticidae {Jumping Spiders} predatory spiders with good vision, used to leap accurately onto prey – no webs but use silk in safety line and refugia Spiders have flexor muscles across the dicondylic joints of their legs but no antagonistic extensor leg muscles; so when a jumping spider jumps it does ...
BIOL212AnimalDiversity
... Background: Arthropods are by far the most numerous and diverse of all animals, with more than 1 million known species (most of which are insects)! Terrestrial, freshwater and marine forms are found in every conceivable habitat due to their high degree of evolutionarily adaptability and their great ...
... Background: Arthropods are by far the most numerous and diverse of all animals, with more than 1 million known species (most of which are insects)! Terrestrial, freshwater and marine forms are found in every conceivable habitat due to their high degree of evolutionarily adaptability and their great ...
Chapter 12 - Schoolnet
... needs of animals is the need for food. All animals have adaptations that allow them to obtain, eat, and digest different foods. The chiton, shown in Figure 2, deer, some fish, and many insects are examples of herbivores. Herbivores eat only plants or parts of plants. In general, herbivores eat more ...
... needs of animals is the need for food. All animals have adaptations that allow them to obtain, eat, and digest different foods. The chiton, shown in Figure 2, deer, some fish, and many insects are examples of herbivores. Herbivores eat only plants or parts of plants. In general, herbivores eat more ...
Introduction to Animals
... Answer: Asymmetry – There is no symmetry or balance in body structure and no shape. Example: sponge Radial symmetry – The animal’s body can be divided along any plane through a central axis into equal halves. Example: jellyfish ...
... Answer: Asymmetry – There is no symmetry or balance in body structure and no shape. Example: sponge Radial symmetry – The animal’s body can be divided along any plane through a central axis into equal halves. Example: jellyfish ...
Chapter 6: Introduction to Animals
... needs of animals is the need for food. All animals have adaptations that allow them to obtain, eat, and digest different foods. The chiton, shown in Figure 2, deer, some fish, and many insects are examples of herbivores. Herbivores eat only plants or parts of plants. In general, herbivores eat more ...
... needs of animals is the need for food. All animals have adaptations that allow them to obtain, eat, and digest different foods. The chiton, shown in Figure 2, deer, some fish, and many insects are examples of herbivores. Herbivores eat only plants or parts of plants. In general, herbivores eat more ...
Animal locomotion
Animal locomotion, in ethology, is any of a variety of movements that results in progression from one place to another. Some modes of locomotion are (initially) self-propelled, e.g. running, swimming, jumping, flying, soaring and gliding. There are also many animal species that depend on their environment for transportation, a type of mobility called passive locomotion, e.g. sailing (some jellyfish), kiting (spiders) and rolling (some beetles and spiders).Animals move for a variety of reasons, such as to find food, a mate, a suitable microhabitat, or to escape predators. For many animals, the ability to move is essential for survival and, as a result, natural selection has shaped the locomotion methods and mechanisms used by moving organisms. For example, migratory animals that travel vast distances (such as the Arctic tern) typically have a locomotion mechanism that costs very little energy per unit distance, whereas non-migratory animals that must frequently move quickly to escape predators are likely to have energetically costly, but very fast, locomotion.