Chapter 32 – An Introduction to Animal Diversity All animals share a common ancestor‚ sponges are basal animals‚ eumetazoa is a clade of animals with true tissues‚ most animal phyla belong to the clade bilateria‚ and vertebrates and some other phyla belong Animals share a unique homeobox-containing family of genes‚ known as the Hox genes‚ suggesting that this gene family evolved in the eukaryote lineage that gave rise to animals. Hox genes play important roles in the development of animal embryos
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groups of organisms that have many features in common b Genus – contains several species with similar characteristics c Family – comprising of several genera d Order – comprising of several families e Class – comprising of several orders f Phylum – comprising of several classes g The Five Kingdoms – animalia‚ plantae‚ fungi‚ protoctista and prokaryotes Describe the main characteristics of the five kingdoms including: a Animalia – multicellular‚ do not have cell walls‚ do not have chlorophyll
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It is logical to assume that the mother-infant relationship possesses characteristics and qualities which have proven to be evolutionary advantageous due to the fact that the mother-infant relationship is an unavoidable part of life amongst the phylum mammilla. One theory in which offers a possible explanation presents the belief that “the early relationship between mother and baby has a major impact on the child’s later cognitive‚ emotional and social development” (Paradice 1)‚ in turn enriching
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The Black Abalone An Invertebrate Report Biology – BIOL1000 Abstract The black abalone or Haliotis cracherodii as it is known from its genus species designation is a large‚ edible sea snail. The shell coloring on the outside is a dark blue or green or black‚ and the interior is a pearly iridescent colour. The shell shape is spiraled and very smooth. It uses a muscular foot to adhere itself to rock bases‚ and is fairly nocturnal for its own protection. It is lives along the coast
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AC and Tan P Department of Biological Sciences‚ College of Science‚ University of Santo Tomas‚ España Street‚ Manila 108 ------------------------------------------------- Zoosporic fungi belonging to class Oomycetes of Kingdom Chromista and Phylum Chytridiomycota of Kingdom Eumycota‚ were isolated and cultured in this experiment. Baiting technique was conducted using 6 baits: pollen grains‚ snake skin‚ animal dung‚ shrimp exoskeleton and cockroach‚. The morphological and reproductive characterization
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morphology) of the vertebrate Ontogenesis- development of the invidual Phylogenesis-ancestral history; is is a study of history and of animals that no longer inhabit the earh and known to us by a fossil record *Craniates- hagfish and vertebrates THE PHYLUM CHORDATA: THE BIG FOUR It is falling into two categories: a. lacks vertebral columns (invertebrates) b.with vertebral columns(vertebrates) Protochordates- a dichotomy which is composed of marine animals which is not midway invertebrates and
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Linnaeus introduced the rank-based system of nomenclature into biology‚ the highest rank was given the name "kingdom" and was followed by four other main or principal ranks.[1] Later two further main ranks were introduced‚ making the sequence kingdom‚ phylum or division‚ class‚ order‚ family‚ genus and species.[2] In the 1960s a rank was introduced above kingdom‚ namely domain (or empire)‚ so that kingdom is no longer the highest rank. Prefixes can be added so subkingdom and
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Purpose: The purpose of doing this lab was to observe the regenerative patterns of planaria cells after a portion of their bodies was cut off. Background: 1. A blastema is a group of cells that forms at the site of a wound that eventually turns into the missing parts of a planaria. 2. Planaria fission occurs when a planaria is missing body parts. The organism attaches its tail-end to the ground and pulls itself forward using its head-end in order to tear itself into two parts. Then‚ each of these
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Carl Linnæus Carl Linnaeus was a great scientist who made breakthroughs in botany‚ zoology‚ medicine and‚ most importantly‚ biology. He was one of the greatest scientists of his time. Even to this day‚ his system of naming organisms is used all over the world‚ and his theory in classification is still the most significant. Linnaeus was born on May the 23rd 1707 and he died on January the 10th 1778‚ at seventy years old. He lived in Sweden and studied in three different Swedish universities
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Dissection Megan Williamson period: 3 4/29/13 Objectives: The purpose of this lab was to study and observe the organs in a crayfish and be able to name them. Introduction: Crayfish belong to the kingdom animilia‚ phylum arthropod and class crustaceans. The body is divided into three parts‚ the body‚ the head‚ thorax‚ and abdomen. The head and thorax are apart of a segment called cephalothoraxes‚ which is covered by the carapace made of chitin. The exoskeleton covers
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