1 / 7

Understanding Animal Characteristics and Functions: A Comprehensive Guide

This guide explores the fundamental characteristics and vital functions of animals. All animals are multicellular, eukaryotic, and heterotrophic, depending on feeding to obtain energy. We differentiate between vertebrates and invertebrates, highlighting their unique features. The text discusses types of animal tissues, including epithelial, muscular, connective, and nervous tissues. Key animal functions are examined, such as feeding (herbivores, carnivores, omnivores), respiration, circulation, excretion, response, movement, and reproduction. Additionally, we cover body symmetry, including asymmetrical, radial, and bilateral symmetry, with examples for better understanding.

gaerwn
Télécharger la présentation

Understanding Animal Characteristics and Functions: A Comprehensive Guide

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Notes: Animals

  2. Animal Characteristics Heterotrophic – obtain food and energy by feeding Multicellular – made of many cells Eukaryotic – contain a nucleus Vertebrates – 5% of all animals Invertebrates – 95 % of all animals

  3. Types of Animal tissues 4 Types Epithelial – skin Muscular - muscles Connective –blood and bone Nervous – nerve cells

  4. Essential Animal Functions 1. Feeding • Herbivores - manatee • Carnivores – sharks, sea anemones • Omnivores • Detritivores – most bottom dwellers • Filter feeders – sponges, clams, oysters 2. Respiration • Take in oxygen and give off carbon dioxide. • Many inverterbrates do this by diffusion. • Complex animals use gills or lungs.

  5. Animal Functions, cont’d. Circulation – how materials move around the animal. (diffusion or circulatory systems) Excretion – removal of waste. Could be cells that pump waste out or organs. Waste is ammonia Response – nerve cells. This could be a simple nerve net or complex nervous system. Movement – some animals are sessile – stay attached to something their adult life. Others are motile – move by muscles or muscle-like tissue. Reproduction – sexual or asexual. Many simple animals have the ability to do both.

  6. Body Symmetry Asymmetrical – no body plan Ex. Sponges Radial symmetry – body parts repeat around the center. Ex. starfish Bilateral symmetry – body can be divided up into two equal halves (left and right) Ex. whale

  7. Cephalization – concentration of the sense organs at the front end of an animal. Not all animals show this.

More Related