lee_mervin_mentoor - University of Western Cape
... Fossils of these phyla date back to Upper Paleozoic They were then classified under one phylum (coelenterata) Have may features that they share, but some important once that separate them Seperated on basis of symmetry from other metazoan organisms ...
... Fossils of these phyla date back to Upper Paleozoic They were then classified under one phylum (coelenterata) Have may features that they share, but some important once that separate them Seperated on basis of symmetry from other metazoan organisms ...
Worksheet 2 for teachers
... Given that there are 255 species of bees in Britain (although Apis mellifera is the only species of Apis in Britain), there is a problem of identifying the species when, for example, biologists are doing fieldwork. This is true for all living organisms, but the small size of insects and ‘Cell’ ...
... Given that there are 255 species of bees in Britain (although Apis mellifera is the only species of Apis in Britain), there is a problem of identifying the species when, for example, biologists are doing fieldwork. This is true for all living organisms, but the small size of insects and ‘Cell’ ...
regular course syllabus
... Explain the initiation and conduction of impulses through the heart. ...
... Explain the initiation and conduction of impulses through the heart. ...
Crustacea
... -They have two spots on their head. Called eyespots. Cannot see images but help differentiate between light and dark. -They also have a sense of smell on their head to help detect food. -Planarians feed by sticking a feeding tube into the food, and digesting the food. The extra undigested food comes ...
... -They have two spots on their head. Called eyespots. Cannot see images but help differentiate between light and dark. -They also have a sense of smell on their head to help detect food. -Planarians feed by sticking a feeding tube into the food, and digesting the food. The extra undigested food comes ...
Invertebrate Zoology
... The segmented body plan of the arthropods is related to the segmented body plan of annelid worms. Yet, the arthropods are segmented in a very different way. The chitin containing external skeleton of the arthropod is divided into head, thorax, and abdomen. Simple and compound eyes and various append ...
... The segmented body plan of the arthropods is related to the segmented body plan of annelid worms. Yet, the arthropods are segmented in a very different way. The chitin containing external skeleton of the arthropod is divided into head, thorax, and abdomen. Simple and compound eyes and various append ...
Model Answer (AS-2891)
... exocytosis. This process regulates the amount of water present in the cytoplasm of the amoeba. It is known as osmoregulation. Immediately after the contractile vacuole expels water, its membrane crumples, and soon afterwards, many small vacuoles or vesicles appear surrounding the membrane of the con ...
... exocytosis. This process regulates the amount of water present in the cytoplasm of the amoeba. It is known as osmoregulation. Immediately after the contractile vacuole expels water, its membrane crumples, and soon afterwards, many small vacuoles or vesicles appear surrounding the membrane of the con ...
Marine Animals Without a Backbone
... Cnidarians • Sea anemones, jellies, corals, and realatives • Tissues that perform specific functions – Huge evolutionary step! – Able to swim, respond to stimuli, engulf prey, and more. ...
... Cnidarians • Sea anemones, jellies, corals, and realatives • Tissues that perform specific functions – Huge evolutionary step! – Able to swim, respond to stimuli, engulf prey, and more. ...
Worms
... The nervous system in an earthworm consists of a ventral nerve cord and two cerebral __________________ GANGLIA ...
... The nervous system in an earthworm consists of a ventral nerve cord and two cerebral __________________ GANGLIA ...
Kingdom Animalia
... crayfish one by one, starting at the posterior end and making sure that the whole appendage is taken off exactly at the base. Keeping track of both the numbers and the types of appendages removed, lay them out in sequence on a sheet of paper. From the abdominal segments you should obtain, posterior ...
... crayfish one by one, starting at the posterior end and making sure that the whole appendage is taken off exactly at the base. Keeping track of both the numbers and the types of appendages removed, lay them out in sequence on a sheet of paper. From the abdominal segments you should obtain, posterior ...
Types of Nervous Systems
... – leads tourinary bladder Ureter – closely associated with blood vessels • * all are found in a concavity called the hilus ...
... – leads tourinary bladder Ureter – closely associated with blood vessels • * all are found in a concavity called the hilus ...
Endangered Animals
... Body length: Male 28 to 43 cm/Female: 32 to 40cm The European Mink likes the waterside and is a skilled ...
... Body length: Male 28 to 43 cm/Female: 32 to 40cm The European Mink likes the waterside and is a skilled ...
biology - westminster.org.uk
... Suggest and explain one adaptation shown by at least one of the insects in Fig. 1.1 that allows them to survive in an aquatic environment. ...
... Suggest and explain one adaptation shown by at least one of the insects in Fig. 1.1 that allows them to survive in an aquatic environment. ...
Chapter 27: Evolution
... • At some time during their lives, all vertebrates have the four chordate characteristics. • The notochord is replaced by the vertebral column; this endoskeleton demonstrates segmentation. • The internal organs are well developed and cephalization places complex sense organs at the head. ...
... • At some time during their lives, all vertebrates have the four chordate characteristics. • The notochord is replaced by the vertebral column; this endoskeleton demonstrates segmentation. • The internal organs are well developed and cephalization places complex sense organs at the head. ...
Outline 20: Mollusca
... organization. I am not assuming this is truly the ancestor, but useful for showing key features. A. Shell B. Mantle ...
... organization. I am not assuming this is truly the ancestor, but useful for showing key features. A. Shell B. Mantle ...
Fungi have an mode of nutrition which requires the secretion of
... b. Cnidaria-radial symmetry, polyp and medusa body forms c. Platyhelminthes-flatworms, gastrovascular cavity, acoelomate d. Porifera-gastrovascular cavity, coelom present 66. Which of these statements is true of sponges? a. They have an open circulatory system. b. They are segmented animals. c. They ...
... b. Cnidaria-radial symmetry, polyp and medusa body forms c. Platyhelminthes-flatworms, gastrovascular cavity, acoelomate d. Porifera-gastrovascular cavity, coelom present 66. Which of these statements is true of sponges? a. They have an open circulatory system. b. They are segmented animals. c. They ...
Unit 5: Animals – Sponges, Cnidarians, & Worms
... (“pore bearer”) • Simplest of all animals • Assymetrical • Sessile filter-feeders whose bodies have many pores • Obtain oxygen by filtering water • No nervous system or organ systems • No tissue organization ...
... (“pore bearer”) • Simplest of all animals • Assymetrical • Sessile filter-feeders whose bodies have many pores • Obtain oxygen by filtering water • No nervous system or organ systems • No tissue organization ...
Invertebrates Notes
... leeches, earthworms & marine worms Segmented worms Separated by septa = dividing walls Bilateral symmetry Coelomates 3 cell layers Advanced organ systems ...
... leeches, earthworms & marine worms Segmented worms Separated by septa = dividing walls Bilateral symmetry Coelomates 3 cell layers Advanced organ systems ...
CIRCULATORY SYSTEM – Chapter 37
... despite changes in the outside environment. As a basis for understanding this concept: a. Students know how the complementary activity of major body systems provides cells with oxygen and nutrients and removes toxic waste products such as carbon dioxide. What does this standard mean??? ...
... despite changes in the outside environment. As a basis for understanding this concept: a. Students know how the complementary activity of major body systems provides cells with oxygen and nutrients and removes toxic waste products such as carbon dioxide. What does this standard mean??? ...
Insect physiology
Insect physiology includes the physiology and biochemistry of insect organ systems.Although diverse, insects are quite indifferent in overall design, internally and externally. The insect is made up of three main body regions (tagmata), the head, thorax and abdomen.The head comprises six fused segments with compound eyes, ocelli, antennae and mouthparts, which differ according to the insect’s particular diet, e.g. grinding, sucking, lapping and chewing. The thorax is made up of three segments: the pro, meso and meta thorax, each supporting a pair of legs which may also differ, depending on function, e.g. jumping, digging, swimming and running. Usually the middle and the last segment of the thorax have paired wings. The abdomen generally comprises eleven segments and contains the digestive and reproductive organs.A general overview of the internal structure and physiology of the insect is presented, including digestive, circulatory, respiratory, muscular, endocrine and nervous systems, as well as sensory organs, temperature control, flight and molting.