1 / 19

Diversity of Living Things Chapter 4 Invertebrate Animals

Diversity of Living Things Chapter 4 Invertebrate Animals. Most Animals are Invertebrates. If you were asked to name an animal more then likely you would name a vertebrate animal, an animal with a backbone

media
Download Presentation

Diversity of Living Things Chapter 4 Invertebrate Animals

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. Diversity of Living Things Chapter 4 Invertebrate Animals

  2. Most Animals are Invertebrates • If you were asked to name an animal more then likely you would name a vertebrate animal, an animal with a backbone • However if you look at all life on Earth the fact is that most animals are invertebrates, animals without a backbone.

  3. Six groups of Invertebrates • Sponges: the simplest invertebrates, they live in the ocean and filter feed • Cnidarians: Also live in water but are mobile and have stinging tentacles • Worms: animals with soft tube shaped bodies and a distinct head, live on land and in water

  4. Six groups of Invertebrates Continued • Mollusks: Animals with a muscular foot that allows them to move, found on land and water • Echinoderms: Water animals with a central opening for food • Arthropods: found on land and water some have leg, some have wings

  5. Sponges • Sponges are the simplest multicellular life on Earth • They are sessile animals that do not move and feed by filtering tiny animals out of the water around it • Sponges can reproduce sexually by releasing clouds of eggs and sperm or asexually through budding • While the adult sponge cannot move its larval, immature, form can

  6. Cnidarians • Cnidarians can be mobile or sessile but all have stinging tentacles and a mouth • Cnidarians have a complex reproductive cycle transforming through many different stages

  7. Jellyfish Life Cycle

  8. Worms • Worms are fairly complex with body systems such as a circulatory system and a nervous system • Most worms are hermaphroditic, they have male and female parts • There are three types of worms • Round Worms • Flat Worms • Segmented Worms

  9. Mollusks • All mollusks are soft bodied animals with distinct and developed organ systems like us • All mollusks have a “foot” used for locomotion and a mantle with is a skin flap that protects their internal organs • There are three types of mollusks • Bivalves • Gastropods • Cephalopods

  10. Echinoderms • Literally means “spiky skin” • Instead of a skeleton like we have they use a network of plates just under their skin for support • All echinoderms only have one body opening, food and waste enter and leave out of the same place

  11. Arthropod • Arthropods are invertebrates with segmented body covered with a hard exoskeleton • All arthropods must molt, shed their skin, in order to grow • All arthropods have a head, abdomen, and a thorax (Sometimes they have a thorax and abdomen combine to create a cephalothorax)

More Related