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What are some differences between plants and animals?

What are some differences between plants and animals?. What are animals?. Animals are multi-cellular organisms that must obtain their food by eating other organisms. Describe the classification system used to classify organisms?. A lion belongs to the following groups:

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What are some differences between plants and animals?

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  1. What are some differences between plants and animals?

  2. What are animals? • Animals are multi-cellular organisms that must obtain their food by eating other organisms.

  3. Describe the classification system used to classify organisms?

  4. A lion belongs to the following groups: • Kingdom Animalia (includes all animals) • Phylum Chordata (includes all vertebrate animals, as well as some other more primitive ones) • Class Mammalia (includes all mammals) • Order Carnivora (includes carnivorous mammals, from bears to raccoons to harbor seals) • Family Felidae (includes all cats) • Genus Panthera (includes the great roaring cats: lions, tigers, jaguars, and leopards) • Species leo (lions!)

  5. Reproduction • Animals typically reproduce sexually. • There are a few animals that reproduce asexually. • Example: hydra reproduce by budding

  6. Life Cycles • Insect species undergo one of two different types of metamorphosis. • Metamorphosis is the process of changing from an egg to an adult.

  7. Human Life Cycle

  8. Complete Metamorphosis • Has 4 stages: • Egg, larva, pupa, adult • Performed by beetles, butterflies, houseflies and ants http://aggie-horticulture.tamu.edu/galveston/images/beneficial-00A_Complete_metamorphosis.jpg

  9. Gradual Metamorphosis • Also called incomplete metamorphosis • The egg hatches into a nymph (which often resembles the adult) • Performed by grasshoppers, termites, cockroaches and dragonflies http://www.ndsu.nodak.edu/entomology/topics/images/INCM_GRS.jpg

  10. External Fertilization • Most frogs and toads have external fertilization– a female releases eggs that are then fertilized by the male’s sperm. • Amphibian eggs are coated with clear jelly that keeps moisture inside. • Inside each fertilized egg, a tiny embryo develops. • A few days later, larva come out of the egg and are free-swimming.

  11. Frog Metamorphosis • Hind legs appear first, then front legs • Tadpole then loses gills and starts to breathe with lungs. http://www.phschool.com/atschool/science_activity_library/images/frog_life_cycle.jpg

  12. What comparisons can you make between these 2 types of metamorphosis?

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