classifying animals
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This document provides an overview of 5th grade science topics related to animal diversity. It discusses how scientists classify animals into vertebrates and invertebrates based on their cell structure and body organization. Examples of invertebrate groups like sponges, arthropods, mollusks, and echinoderms are provided. The document also describes animal adaptations like mimicry and camouflage that help animals survive in their environments. Inherited behaviors and heredity are defined. Finally, hybrids and crossbreeds as offspring of parents from different animal varieties are outlined.
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Charles Darwin developed the scientific theory of evolution by natural selection to explain how species change over time through descent with modification from common ancestors. His theory states that genetic variation within species leads to different traits, which are acted on by environmental pressures like competition for resources and predation. Traits that increase survival and reproduction become more common in populations over many generations, resulting in evolution of new species. Darwin provided extensive evidence from biogeography, fossils, embryology and comparative anatomy to support his theory.
Foodchains
This document discusses ecosystems, habitats, food chains and webs. It explains how different animals are adapted to their environments and how they fulfill different roles as producers, consumers, herbivores, carnivores, omnivores, predators and prey. The document also addresses how the loss of any part of a food chain or habitat can negatively impact other organisms and discusses the importance of caring for the environment.
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Kingdom classification and details classification of kingdom and phyllum
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classifying animals
- 2. ANIMAL DIVERSITY Animal Structure and Function Animal Adaptations
- 3. Cells are the building blocks of all living things.
- 4. Classification • Scientists classify animals based on cell structure, how cells are organized into tissues, how tissues are organized into organs and organs are organized into systems.
- 5. Scientists classify animals into two large groups. • 1. Vertebrates – Animals with backbones. • 2. Invertebrates – Animals without backbones.
- 6. Invertebrate Facts • A sponge is one of the smallest animals on Earth. • Arthopods are the largest group of animals on Earth. • Mollusks include snails, clams and octopuses. • Arthopods include insects, spiders, centipedes, millipedes, lobster and crabs. • Echinoderms include starfish---------------------------------------------------- ------------------------------------------------------------ -----------------------------------------------
- 7. Adaptation is a characteristic that enables a living thing to survive in its environment. • Mimicry is an • Camouflage is an adaptation in which an adaptation in which an animal is protected animal protects itself against predators by against predators b y its resemblance to blending in with the another, unpleasant environment. animal.
- 8. Can you find the hidden bugs?
- 9. What is inherited? • An inherited behavior is one one that is not learned. It is done automatically. • Heredity is the passing of inherited traits from parents to offspring.
- 10. Hybrids and Crossbreeds • Hybrid- Living things that have parents that are quite different from each other, such as donkeys and horses. • Crossbreed – A product of the mating of individuals from two distinct breeds or varieties of the same species.