EDUCATION MIND MAP

Mind Map

Mind Map

Invertebrates

They don´t have backbone

Types of organisms, type of symmetry

External and internal backone

Setae.

Platyhelminthes nematodes and annelids.

Characteristics

Cutaneous respiration.

Types of symmetry

Types of organisms and type of symmetry.

Osculum, choanocytes central cavity

Porifera

Molluscs

Radula.

Nutrition and reproduction

Muscular foot.

Type of symmetry

Siphon.

Types of cnidarians and type of symmetry.

Cephalotorax.

Cnidarianse

Metamorphosis

Echinoderms

Type of reproduction

Arthropods

Nymph – Chrysalis.

Ambulacral system.

Cnidoblast

Chelicerae.

The cephalotorox results from the fusion of the head and torax

The types of symmetry in the vertebrates: Bilateral symmetry: This consists in we can divided the body into two equal parts using an imaginary line. Radial symmetry: They have a several planes of symmetry. Planes means a line through an object that produces three-dimensional mirror image Asymmetrical This means that the animal cannot be divided into equal parts.

Molluscs have a complete digestive system with a mouth , oesophagus, stomach and anus. Many of them have a organ in their mouth called a radula.

EXTERNAL O INTERNAL BACKBONE

The internal skeleton provides the animal´s shape and supports the muscles so movement take a place.The external skeleton protect the animal.

Cnidarians are aquatic animals that have radial symmetry. This group includes: Jellyfish, hydras, anemones and corals

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Medusae mostly reproduce sexually, but polyps normally reproduce asexully through a budding spores and also reproduce through alternation generations. Sexual phase: Medusae forms ovules and sperms and release them into the aquatic enviroment Asexual phase:Polyps produce buds, small parts that breaks off and can develop into a new medusa

Cniarians using tentacles that have cnidoblast, cells that have rolled up flagella that extend and inject a paralysing liquid into their prey.

The poriferia have a asymmetrycal or have radial symmetry.

Otherwise they breathe through their moist skin, this is called cutaneos respiration

Nutrition: Sponges don´t have distinct digestive, respiratory and excreatory system. Instead, they filter food particles out of water. Choanocytes create a stream of water that travels through the pores, they takes the nutrientd and oxygen dissolved in the water . Carbon dioxide and other waste products leave the sponge through the osculum. Reproduction: Sponges reproduce sexually, they produce gametes that form larvae when they fuse together.When the larvae find a place to settle, a new individual is formed. They can also reproduction asexually through fragmentation.

They reproduce sexually and fertilisation occurs internally. The change from larva to adult is called metamorphosis.

Molluscs are invertebrates that have soft bodies and bilateral symmetry. They have this types: Bivalves Gastropods Cephalopods

They have a hard hairs on their skin, called setae, to help them move.

Osculum: Is a large hole used to release water and waste substances.Choanocytes: Cells that cover the inner cavity and create a stream of water. Central cavity(atrium): Is a hollow space

Two of the most well-known grow of platyhelminthes are tapeworms and planarians.They have a bilateral symmetry

Molluscs

They have a muscular foot that they use to move.

Bivalves

They have a muscular foot , which they use to dig into the seabed where they live.

Gastropods

They have a muscular foot which secretes a viscous substances that helps them to move

To move Cephalopods quickly expel water out of a siphon , a long a tube-like structure.

A nymph hatches from an egg. It´s similar to the adult, but smalller adn doesn´t have wings.Larvae hatch grow for a period of time. Then they enter a chrysalis state where they envelop themselves in a cocoon.

Cephalothorax have a pair of sense appendages, called pedipals, and jaws, called chelicerae.

Echinoderms have a network of tubes and internal channels that water circulates through. It´s called the ambulacral system