Invertebrates

Filter feeders are organisms that are mainly found underwater. They eat using the method of 'filter feeding' where-by they simply just open their mouth and take in whatever happens to be their (nutrients in water), whilst filtering the undesirable parts.

Finding commercial property to lease is good for growing businesses. Some tips are to become more informed about the commercial leasing laws and applying them. Information is given at http://commercial.laws.com/commercial-property-for-lease.

They are butterflies,moths,ants,bees,bears,bunnies,dogs,cats,rats,and road runners.

(Sorry,but that's all I could think of)

Phylum Porifera - The Sponges:

a.) Habitat: mainly marine (salt water)

b.) Sponges have a porous body wall. The pores or holes allow water to pass through this animal. Floating food

particles are caught once they are inside the sponge.

c.) Adult sponges are sessile feeders which means these animals are attached to shells or rocks on the ocean

floor as they feed.

d.) Shape: asymmetrical which means no definite shape.

2. Phylum Coelenterata - The Coelenterates: jellyfish, hydras, corals

a.) Habitat: marine

b.) Body wall: Their body wall is made of 2 cell layers called the ectoderm and endoderm. The ectoderm is the

outside layer while the endoderm is found on the inside layer. A jellylike material is found between these 2

layers.

c.) Digestive System: The digestive system is incomplete which means that coelenterates have just one opening

to the digestive cavity. This single opening serves as both its mouth and anus.

d.) Symmetry: radial

e.) Specialized Cells: 1.Most coelenterates have tentacles that contain stinging cells that are used for protection

and capturing food. 2. Their bodies contain a nerve network that allows movement of the tentacles and

body.

3. Phylum Platyhelminthes - The Flatworms: planaria, tapeworms

a.) Habitat: fresh and salt water; terrestrial(land)

b.) Body Plan: These animals are given their name because of their flattened bodies. Flatworms have 3 distinct

tissue layers called the ectoderm, endoderm, and mesoderm or middle layer. Each layer gives rise to the

various organs and systems of this animal.

c.) Digestive System: In free-living species of flatworms the digestive system is incomplete which means that

the digestive cavity has only a single opening. The parasitic tapeworm has no need for a digestive system

because it absorbs nutrients that are already digested by the host in which it lives.

d.) Symmetry: Flatworms have bilateral symmetry and they have a definite head and tail region.

e.) Specialized Structures: 1. The planaria has a pair of eyespots at its anterior or front end. These eyespots

detect light which the planaria avoids so they are less visible to their predators.

4. Phylum Nematoda - The Roundworms

a.) Habitat: fresh and salt water; terrestrial

b.) Body Plan: The body of a roundworm is long, smooth and unsegmented. Their cylindrical bodies are

tapered at both ends and are covered by a protective cuticle. Three tissue layers; ecto, endo and mesoderm.

c.) Digestive System: Roundworms have a complete digestive system which means their digestive tract has 2

openings; a mouth to ingest food and an anus to egest waste.

d.) Symmetry: Bilateral symmetry with an anterior end and a posterior end.

e.) Interesting Facts: 1. Free-living roundworms are extremely plentiful in soil and are essential in producing

quality soil. 2. Pinworms are common parasitic roundworms found in children.Contributed by: Ms. Kathy Fleiger

Horton High School

5. Phylum Annelida - The Segmented Worms: earthworm, leech, sandworm

a.) Habitat: marine, freshwater, terrestrial

b.) Body Plan: similar shape as the roundworm but the body is segmented both internally and externally which

allows for a quicker response for movement.

c.) Digestive System: Segmented worms have a complete digestive system and this set-up is often referred to as

a tube-within-a-tube body plan.

d.) Symmetry: Bilateral; anterior and posterior ends; dorsal and ventral surfaces.

6. Phylum Arthropoda - The Arthropods: insects, spiders, crustaceans

a.) Habitat: arthropods are found in all environments.

b.) Numbers: Arthropods are the most successful of any animal group. This is mainly due to the success of

insects, which has more than a million different species.

c.) Body Plan: Arthropods have a segmented body with paired jointed appendages that provide excellent

movement for walking, swimming, flying, grabbing, fighting, digging and biting just to name a few. In most

arthropods the body is divided into a head, abdomen and thorax.

d.) Exoskeleton: The outside skeleton of arthropods is made of chitin which protects the soft body of this

animal and prevents water loss allowing them to live successfully on land.

e.) Symmetry: Bilateral

7. Phylum Mollusca - The Mollusks: clams, snails, oysters, octopus

a.) Habitat: marine and fresh water; terrestrial

b.) Body Plan: Mollusks have a soft, unsegmented body and often move with a strong muscular foot on its

ventral surface.

c.) The radula: Mollusks are well known for their tongue-like organ called the radula which has many rows of

teeth and is used to scrape food from the surface of plants and rocks.

d.) The mantle: The mantle is a fold of skin that surrounds the body organs. The mantle acts like a gland

because it is capable of secretion. These secretions harden to help form the shells of mollusks.

e.) Symmetry: bilateral

8. Phylum Echinodermata - The Echinoderms: sea stars, sea urchins

a) Habitat: all are marine living mainly on the ocean floor.

b) Body: Echinoderms have an internal, limy skeleton and a spiny outside surface or skin. These structures

give both support and protection.

c) Water-vascular System: Echinoderms like sea stars and sea urchins are well known for their water-vascular

system which consist of water-filled tubes that run through their body. By moving water in and out of these

tubes echinoderms can move on "jets" of water or use their tubed feet as suction cups.

d) Digestive System: complete

e) Symmetry: Radial

9. Phylum Chordata - The Chordates: fish, reptiles, amphibians, birds, mammals

a.) Habitat: marine, freshwater, or terrestrial

b.) Symmetry: bilateral

c.) Dorsal nerve cord.

d.) Chordates have a flexible, supporting rod or notochord on their dorsal side. .

All phyla except for one (Chordata) include only invertebrates, so 8 phyla include only invertebrates.

The phylum Chordata is made up of the subphylum Vertebrata so therefore Chordata also has some species in it that are invertebrates.

Humans are included in the phylum Chordata as well as the subphylum Vertebrata.

All vertebrate animals (animals with spines) and a few invertebrates

("echinoderms" - starfish, sand dollars, sea urchins, and sea

cucumbers) have closed circulatory systems.

Felis _______ (genus, specices) Felis _______ (genus, specices)

They are vertebrates.

It doesnt

Not true. Octopuses are a type of cephalopod. They have a full digestive system. They have an anus and eliminate waste through the siphon.

Here's a link to information on cephalopods:

http://www.britannica.com/EBchecked/topic/103036/cephalopod/35765/Form-and-function

insects

Approximately 95% of known species of animals are invertebrates.

A Vertabrae has a backbone an invertabrae does not. She Waz right :)

Starfish have a well-structured system of tubes that works in lieu of the circulatory system. What passes for this circulatory system uses ocean water instead of blood. A starfish doesn't have a heart, but water running through the arms and feet provides oxygen.

vertebrates

Animals that are invertebrates don't have spines. They include organisms like Arthropods and coelenterates. They are completely different from animals that are classed as vertebrates, which includes mammals, birds, fish, reptiles and amphibians.

most likely the urchin is realy stressed out or sick if it is stressed out it could be a number of reasons Water qaulity is most likely the cause most likely the urchin is realy stressed out or sick if it is stressed out it could be a number of reasons Water qaulity is most likely the cause

They need several inches of substrate in the cage, which can be a high quality sand like Carib Sea Aragonite sand, or Eco Earth coconut fiber. It should be at minimum twice as deep as your largest crab is tall. Never use cedar or any conifer in your hermit crab's cage. This includes the half logs sold for reptiles.

You will need a glass tank with a lid that closes to hold in humidity, which should be 70-80%. You will need a humidity gauge placed about midway in the tank near the substrate. A thermometer is a must, best is one at each end and one to take the temperature of the substrate from time to time. Your crabs NEED a range of temperature, from up to 80*F at one end to as low as 70*F at the cooler end. This is hard to obtain in a small tank, so if it is at least 73 at the cool end up to 80 at the warm end, this is suitable. usually this must be obtained using a spot heat lamp. This will dry the air, so you need ways to keep the humidity up. Do not use a sponge in their water dish - it is a myth that they need this to drink from, and it harbors bacteria that can make you and your hermit crabs sick. They need a dish for fresh, dechlorinated water, and a dish for marine salt water. Do NOT use "hermit crab" salt water, as it does not provide the electrolytes hermit crabs need for molting and health. Hermit crabs carry water in their shells, so need a water dish they can climb into and submerge if they like. Do not bathe them, as this stresses them, disrupts the salinity of their shell water, and is not necessary if you provide a decent water dish for them to climb into. The only time they should be bathed is when you first bring them home, and when you do a deep clean, or if there is an issue with pests in the tank.

Feeding your crabs is another matter entirely. They need a wide variety of nutrients, and require a huge variety of foods. You will need some sources of wood in your tank for them to munch on, such as cork bark, cholla wood, and coconut huts with some of the fibers still on them. You can most easily do this by making your own from a fresh coconut. Stay away from any commercial foods containing copper sulfate and ethoxyquin, as these have been linked to molting abnormalities. Feeding is too in depth to go into here, but make sure they have a daily source of seaweed (variety, not the same each day), protein, chitin, cellulose, calcium, and fresh fruits and vegetables. They are omnivores, and require meat just as much as vegetable matter. They also love crunchy brown maple leaves.

For more complete information about how to best care for your hermit crabs, visit http://www.hermitcrabparadise.com and read the care sheets there, and join the forum if you like to get advice from owners who have had their crabs for 10+ years without a death.

Invertebrates do not have a spine (backbone) like vertebrates do. Fish, Birds, Reptiles, Amphibians, Mammals are vertebrates with internal skeletons, spines, heads, and brains with central nervous systems. All insects are invertebrates and they mostly have exoskeletons (external skeletons), and no backbones. Their internal organs make up the entire contents of their interior structures.

Worms make up the largest group of complex invertebrates.

animal like protist

I'm not great at insects, but it might be a Copestylum mexicanum. You might want to try a more reliable source than me. It would help to know where you saw it.

These are less than an inch (25 mm) in diameter

most invertebrates are arthropods (insects). invertebrates are animals with no backbone or with an outer skeleton. chow!

If we really care about the CO2 in the atmosphere then we need to cut down less trees and re-plant those we have already taken out, then plant another 6 Billion more, yes that is a Billion with a "B". Land Clearing, deforestation and other issues is a huge calamity.

The Rain Forests in Africa, Amazon and other places also at severe risk. Trees take CO2 and turn it to oxygen, and if we plant 6-8 Billion trees we might solve the Climate Change, greenhouse problems. Indeed, we are losing 2-acres a minute as has been noted. Lots of issues out there indeed.

Studying this stuff in the online think tank and all the inter-related issues makes me worry about linear thought guiding our policies, when we need a multiple variable approach and non-linear thinking approach to truly be prudent. In fact we have the technology to use UAVs to fly over and plant more trees.