'Specialized cells' diaporamas de présentation

Figure 2: Plant Tissues. Figure 3: Flower Structure. 2-1 Plant Cells, Tissues, and Organs. Learning Goals. To learn about plant cells To label the parts of a plant To discuss where photosynthesis takes place. 2-1 Plant Cells, Tissues, and Organs.

MUSCULAR SYSTEM. BY JASON STEVENS. FUNCTION. The muscular system is composed of specialized cells called muscle fibers. Their predominant function is contractibility.

9 milestones in animal evolution. 1. Multicellularity. An organism that has many cells. Example organisms: Sponges. 2. Tissues. A group of specialized cells with a common structure and function. Example: Cnidarians (Jellyfish) (Corals) (Anemones). 3. Bilateral Symmetry.

Sponges . Section 26–2 This section explains what a sponge is. It also describes how sponges carry out essential functions. . What Is a Sponge? . Sponges are placed in the phylum Porifera . . What are pores, and where are pores on a sponge’s body?

KEY CONCEPT Sponges and cnidarians are the simplest animals. Sponges are the most primitive animals on Earth. 570 million-year-old fossils closely related to group of protists. Sponges have specialized cells but no tissues. Sponges share common characteristics. sessile

Chapter 29- Comparing Invertebrates. I. Invertebrate Evolution. Origin of the Invertebrates 1. Invertebrates fossils have been found to date between 610-570 million years ago. 2. Now molecular paleontology studies the fossils DNA.

Unit 1: CELLS. Cell Theory. The Cell Theory. All living organisms are composed of one or more cells 2. Cells are the smallest units of life 3. Cells only come from pre-existing cells. Functions of Life.

Phylum Porifera: Sponges. Chapter 6. Crustacea. Vertebrata. Arachnida. Tunicata. Insecta. Chordata. Arthropoda . Hemi- chordata. Mollusca. Annelida. Echinodermata. Protostomes. Deuterostomes. Pseudocoelomates. † Triploblasts * Diploblasts. Coelomates. Acoelomates.

Sensory Systems. Lecture 12. Sensory Information. Detection of changes in environment external or internal 4 main functions perception control of movement regulation of body function maintenance of arousal Not all conscious experience ~. Sensation vs. Perception . Sensation

DIVERSITY OF PHYTOPLANKTON CYANOBACTERIA. MARINE BOTANY FALL 2009 Dr. Mitra. CYANOBACTERIA. Prokaryotic cells First algae to appear-fossil history-3.5 billion years Fossils of cyanobacteria--stromatolites. CHARACTERISTICS OF CYANOBACTERIA. Lack membrane-bound organelles

Life Science. Structure and Function in Living Science. Living systems at all levels of organization demonstrate the complementary nature of structure and function. . Important levels of organization for structure and function include : cells tissues organs organ systems

Osmoregulation. The management of body’s water content and solute composition Maintains body cells’ cytoplasm composition Usually accomplished by managing interstitial fluid Animals with closed circulatory system accomplished by managing blood. Transport Epithelium.

Asexual Reproduction. Sea Star. If asexual reproduction involves mitosis, how would the parent cell compare to the daughter cell?. Asexual Reproduction. Asexual reproduction = cloning Involves only one parent Parent and offspring are identical (DNA is exactly the same)

Phylum Chordata. Composed by: Arika Johnson, Gwen Leahy, Savannah Schell, and Jordan Sparks. Characteristics. Chordates are heterotrophic- they can’t make their own food. They reproduce sexually instead of asexually. All Chordates have a notochord (pliable rod like

Protists. Kingdom Protista. Most protists are unicellular organisms Few are multicellular All protists are eukaryotes Eukaryotes have cellular organelles and prokaryotes (bacteria) do not. Kingdom Protista. Most unicellular protists are microscopic.

Chapter 3 Introduction to plant structure. Organization of the vascular plant body. Cells Tissues Organs. Meristems – meristematic cells, initials Derivatives – differentiated, non-meristematic, specialized cells. Cells. Meristems & growth Apical meristems & primary growth

Levels Of Organization. 7.3.1 Summarize the levels of organization within the human body (including cells, tissues, organs, and systems). The levels of organization from simplest to most complex are:. Cells Tissues Organs System Organism. Cells.

CHAPTER 29 PLANT DIVERSITY I: HOW PLANTS COLONIZED LAND Ferns in a Tasmanian Forest. Highlights of Plant Evolution. Charophyceans-green algae most closely related to land plants. Charophyceans-green algae most closely related to land plants. Charophyceans homologies with land plants:

Fishes. Moser and Hanson. Where exactly are they?. Fish live in either fresh or salt water (some in anemones), depending on their specific group. Depending on their family, they eat anything from small underwater mollusks to other fish. http://www.nmfs.noaa.gov/habitat/habitatprotection/efh/.

Section 2 The different Jobs of Cells. The cells in many-celled organisms are specialized in shape and size for their function. Human specialized cells include fat cells, bone cells, nerve cells, and muscle cells.