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Biology - Chapter 29 “Echinoderms and Invertebrate Chordates”

Biology - Chapter 29 “Echinoderms and Invertebrate Chordates”

Biology - Chapter 29 “Echinoderms and Invertebrate Chordates” Charles Page High School Stephen L. Cotton Section 29-1 Echinoderms OBJECTIVES: Relate the structure of echinoderms to essential life functions. Section 29-1 Echinoderms OBJECTIVES:

By johana
(377 views)

The Nervous System

The Nervous System

The Nervous System. Students will be able to describe the nervous system and the impact it has on our lives. Nervous Tissue. Nervous tissue is composed of two main cell types: neurons and glial cells. Neurons transmit nerve messages.

By arleen
(447 views)

Cnidarians

Cnidarians

Cnidarians. (Coelenterates). Phylum Cnidaria (Coelenterata). Class Hydrozoa = Hydra POLYP body form = “vase shaped” ; sessile Most live in colonies. 1 of 3 classes within Phylum Cnidaria. Phylum Cnidaria (Coelenterata). Class Scyphozoa: “Cup Animals”

By Gideon
(592 views)

Drosophila Body Plan (part 2): Segmentation

Drosophila Body Plan (part 2): Segmentation

Drosophila Body Plan (part 2): Segmentation. Segmentation is the most obvious feature of Drosophila larvae Each segment has its own identity Segments are derived from parasegments (the first units to form). 14 parasegments appear after gastrulation Delimited by temporary grooves

By Anita
(995 views)

REPTILES & AMPHIBIANS

REPTILES & AMPHIBIANS

REPTILES & AMPHIBIANS. The Rise of Amphibians (Devonian Period) A. Amphibians have a body plan and mode reproduction somewhere between “fishes” and “reptiles.” They are vertebrates with a bony endoskeleton and a four-legged aquatic ancestor. REPTILES & AMPHIBIANS.

By Philip
(450 views)

Animal Reproduction & Development

Animal Reproduction & Development

Animal Reproduction & Development. What is the advantage of this development system? . Oogenesis. Unequal meiotic divisions unequal distribution of cytoplasm 1 egg 2 polar bodies. Meiosis 1 completed during egg maturation. ovulation. Meiosis 2 completed triggered by fertilization.

By shlomo
(288 views)

Search the Web Using Google .

Search the Web Using Google .

Search the Web Using Google . “monarch butterflies” and not just butterflies. Use unique and not general words and phrases. Combine concepts to narrow your results. Use synonyms and related words. Singular / Plural forms of words “make a difference” in your Google results.

By fisseha
(171 views)

Analysis of Gene Expression Data

Analysis of Gene Expression Data

Analysis of Gene Expression Data. Rainer Breitling r.breitling@bio.gla.ac.uk Bioinformatics Research Centre and Institute of Biomedical and Life Sciences University of Glasgow. Outline. Gene expression biology Measuring gene expression levels

By tale
(364 views)

Introduction to Kingdom Animalia

Introduction to Kingdom Animalia

Introduction to Kingdom Animalia. Defining Animals 1. Animals are multicellular, heterotrophic eukaryotes. 2. Animals generally store their carbohydrate reserves as glycogen

By mimis
(207 views)

BASIC BODY PLAN

BASIC BODY PLAN

BASIC BODY PLAN. From a two-layered sheet to a segmented tube within a tube. Sagittal view of “generic” vertebrate embryo/body plan Draw gut tube within “outer” tube Mouth, anus Cut across middle to see cross (or transverse) section. Outer(“somatic”) tube --striated muscle

By tariana
(200 views)

Kingdom Animalia

Kingdom Animalia

What are animals? Animals eat to live: ‘ingestively’ heterotrophic Multicellular lack a cell wall. Kingdom Animalia. Sponges are the oldest known animals in the fossil record and are similar to protistan choanoflagellates. Origins and Early Diversification of Animals. Sponge (an animal).

By christmas
(251 views)

Biology - Chapter 29 “Echinoderms and Invertebrate Chordates”

Biology - Chapter 29 “Echinoderms and Invertebrate Chordates”

Biology - Chapter 29 “Echinoderms and Invertebrate Chordates”. Charles Page High School Stephen L. Cotton. Section 29-1 Echinoderms. OBJECTIVES: Relate the structure of echinoderms to essential life functions. Section 29-1 Echinoderms. OBJECTIVES:

By vic
(887 views)

The Circulatory System

The Circulatory System

The Circulatory System. Jenny McInerney. Circulation video. The Need for a Circulatory System. Organisms need to exchange materials with the external environment This must be done on a cellular level In most multicelllular organisms, direct exchange with the environment is not possible

By minna
(141 views)

Chapter 21- Development and Gene Expression

Chapter 21- Development and Gene Expression

Chapter 21- Development and Gene Expression. Central questions: How are cells in various locations of the body different -is the variation in their genome or in the proteins they express? Can differentiated cells be coaxed to retrace their steps and become de-differentiated?

By zuleika
(193 views)

Introduction to Animals

Introduction to Animals

Introduction to Animals. Over a million different types have been identified! Animals likely evolved from protozoans. Kingdom Protista. Section 1. blastula (596) ectoderm (596) endoderm (596) mesoderm (596) body plan (598) asymmetrical (598) radial symmetry (598)

By jerold
(144 views)

Domain Bacteria

Domain Bacteria

Domain Bacteria. Domain Archaea. Domain Eukarya. Common ancestor. Kingdom: Animals. Domain Eukarya. Animal Characteristics . Heterotrophs must ingest others for nutrients Multicellular complex bodies No cell walls allows active movement Sexual reproduction

By minh
(93 views)

Animal Diversity

Animal Diversity

Animal Diversity. Biology for Majors. Eras of Earth’s History. Earliest Animal Fossils. Fossils of spongelike creatures (a) Cyclomedusa and (b) Dickinsonia date to 650 million years ago, during the Ediacaran period. The Cambrian Explosion.

By ace
(354 views)

Phylogeny and Systematics

Phylogeny and Systematics

What is meant by phylogeny? Evolutionary history of a species… Based on common ancestry Supported by shared characteristics and genetics Documented by fossils and genetics. Phylogeny and Systematics. Systematics? = study of the organismal diversity of life

By Sophia
(218 views)

Unit 8 Invertebrates

Unit 8 Invertebrates

Unit 8 Invertebrates. Ch. 27 Worms & Mollusks. What Is a Flatworm?. Flatworms are soft, flattened worms that have tissues & internal organ systems They are the simplest animals to have 3 embryonic germ layers, bilateral symmetry, & cephalization. Form & Function in Flatworms.

By Mia_John
(214 views)

Kingdom Animalia

Kingdom Animalia

Kingdom Animalia. Kingdom Animalia. Multi-celled Heterotrophic (Consumer) Has a Nucleus (Eukaryotic) It is the largest Kingdom so far. ( See Link ) There are over 1.3 million species of Animals . How many of each type of Animal. Invertebrate Animals. They do not have a backbone

By althea
(152 views)

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