re the most recent ancestor/s of fishes, amphibians, reptiles, birds, and mammals. Describe the morphological features of the ancestor/s briefly.
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What is /are the most recent ancestor/s of fishes, amphibians, reptiles, birds, and mammals.
Describe the morphological features of the ancestor/s briefly.
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- What is /are the most recent ancestor/s of the following: Modern Fishes Earliest amphibian (What group of fishes gave rise to earliest amphibians?) Earliest reptiles Earliest birds Earliest mammals Describe the morphological features of their ancestor/s briefly.Pharyngeal slits are which of the following? Question 24 options: a) Openings in the pharynx. In aquatic chordates they allow for exit of water that enters the mouth. b) Elongations of the posterior portion of the body. Use for locomotion in fish, or balance in some terrestrial vertebrates. c) Flexible, rod-shaped structures that grows from mesoderm. Gives support to an animal in embryonic development of chordates or for entire life depending on the species. d) Tissues that produces thyroid type hormones. e) Hollow tubes that develops from ectoderm. Develops into the central nervous system.A) Draw a phylogenetic tree for the major phyla of the animal kingdom. Label the appropriate branch points on the tree with the following features: Tissue, radial symmetry, bilateral symmetry, body cavity, deuterostomes, and protostomes. B). Draw a diagram of a hydra. On the hydra, label the mouth (hypostome), tentacles, basal disk, ovary, budding polyp, gastrovascular cavity. State the function of each structure you labeled next to or under your diagram.
- a) Which of the derived traits came into existence before the bony shell? b) List all the derived characters in the table that would have been present in the ancestor to gorillas, wolves and humans.Holometabolis refers to complete metamorphosis (True/False)?The ancestors of extant tetrapods first evolved the ability to live out of water over 350 million years ago. Which of the following had to have been true for natural selection to have favored the original evolution of limbs? A) Closely related lineages that remained in the ocean must have gone extinct. There must have been differences in survival and or/reproduction based on size, musculature, bones or other (B functional aspects of early limbs. Large predators must have been a major source of mortality for populations that spent more time in the water and less on land. The ability of some ancestral fish-tetrapod transitional forms to move from one body of water to another during D droughts must have led to decreased mortality. E There must have been less competition for food on land.
- In 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 cord1 page: Members of the Class Aves and Teleost members of the Class Osteichthyes have both undergone significant radiations. Characterize both aves and teleosts as highly derived from other vertebrates by giving examples of several unique evolutionary structures from each group.Mammals belong to a group of amniotes known as synapsids. Three major lineages of mammals had emerged by the early Cretaceous period. In a tabulated form, compare these three lineages to illustrate their diversity in terms of: a. Embryonic developmen, b. How the young are fed and c. Period of gestation
- During chordate evolution, what is the sequence (from earliest to most recent) in which the following structures arose/evolved? 1 v [ Choose ] notochord gastrulation bilateral symmetry 2 true tissues deuterostome embryonic development (mouth then anus) 3 [ Choose ] 4 [ Choose ] [ Choose ]Only eight species of lobe-finned fishes are alive today, remnants of a group that flourished in the Devonian period of the Paleozoic era. What morphological characteristics distinguish lobe-finned fishes? What is the literal meaning of Sarcopterygii, the taxon comprising lobe-finned fishes and tetrapods?Which of the following is the correct classification for the following chordate animal: These animals are chordates but do not have a backbone or cranium. They have all five features of chordates into adulthood. The notochord extends into its head. Question 27 options: a) Birds b) Anura / Frogs c) Urodela / Salamanders d) Superclass Agnatha e) Monotreme f) Eutharia g) Reptiles (non avian) h) Class Chondrichthyes i) Cephalochordata j) Class Osteichthyes k) Marsupial