Lancelet is Proto-chordate which has a notochord all along the length of the body. Vertebral column develops and jaws form in Gnathostomes. Fish have fins and others have four limbs which are called tetrapods. Amnion develops in tetrapods to form reptiles, aves and mammals. Dolphins have secondarily adapted to aquatic life.
Assume that tuna and dolphins are sister species and redraw the phylogenetic tree accordingly. Notice that...
If you were to create a phylogenic tree of these organisms, which would branch off first and why? Lancelet (outgroup) Salamander Tuna Turtle Leopard Dolphin oo - Lamprey o - Character (1) Backbone (2) Hinged jaw (3) Four limbs - o - - o - o 0 (4) Amnion (5) Milk o 0 0 0 (6) Dorsal fin 1 *Although adult dolphins have only two obvious limbs (their flippers), as embryos they have two hind-limb buds, for a total of...
SCIENTIFIC INQUIRY Examine the data in the table below. o Lancelet (outgroup) un Lamprey Tuna Salamander Turtle Leopard Dolphin Backbone Hinged jaw 0 0 1 1 Four limbs 0 0 1 Amnion 0 Milko 0 0 Dorsal fino *Although adult dolphins have only two obvious limbs (their flippersas embryos they have two hind-limb buds for a total of four limbs. o O O Drag the appropriate labels to their respective targets. w many evolutionary changes are required in each tree?...
Learning through Art: Constructing a Phylogenetic Tree Part A Use the information in the character table below to build and label a phylogenetic tree of vertebrates. Drag the blue labels to blue targets to indicate the appearance of these four derived characters in the evolution of verte Drag the white labels representing various vertebrate groups to white targets to complete the phylogenetic tree TAXA Lamprey (outgroup) Fish Frog Turtle Lemur Hinged jaws CHARACTERS Four walking legs Amnion Hair, mammary glands...