Invertabrates

TEST REVIEW

Sponges

one type of animal that filters the water it lives in to get food.

Example - Venus-Flower Basket,


Characteristics

- reproduce asexually

- can’t move once they attach as adults

- gets food from environment around it.

- between inner and outer layer there is a jelly-like layer

- grow at almost any depth

- grow on hard surfaces

- shaped like fingers, tree branches or round

- filters water to get its food

- 5000 known species

-no real digestive system

Adaptation - body is a network of tiny pores and canals that allow water to filter through to obtain food because they don’t move.


Segmented worms

Segmented Worms

Segmented Worms - a worm that has a body made of segments, and or sections. These worms also have a more complex body system. For example, an earthworm has a circulatory system, meaning having to do with blood cells, veins, an arteries. They have tubes that pump their blood throughout their whole body. Also, they have a brain, or nerve center.

Example: Earthworm

Characteristics

Segmented Worms - a worm that has a body made of segments, and or sections. These worms also have a more complex body system. For example, an earthworm has a circulatory system, meaning having to do with blood cells, veins, an arteries. They have tubes that pump their blood throughout their whole body. Also, they have a brain, and a nerve center.


Adaptation - Tubes in circulatory system pump blood through major vessels througout their whole body.


Roundworms

Roundworm - Has a tubelike body form. They are to small to be seen without a microscope, has a digestive system, and live in soil, and have simple sense organs.

Example: hook worm


Characteristics

-Live in soil

-Tubelike body

-Digestive System

-Hard to see without microscope

-Has simple sense organs


Adaptation -

How do roundworms and flatworms differ? They have different characteristics such as being flat, and having a tubelike body, and a parasitic roundworms live in other animals bodies



Arthropods

arthropod - An animal that has a jointed exoskeleton.

Crustaceans - one type of arthropod that lives water. They include lobsters, and they have an abdomen, head, and thorax, which are there 3 segments.

arachnids - One type of arthropod that includes scorpions, spiders, and ticks. These have eight legs.

Insects - animals with six jointed legs, that are the largest group of Arthropods.


Characteristics

animals with six jointed legs, that are the largest group of Arthropods.

one type of arthropod that lives water. They include lobsters, and they have an abdomen, head, and thorax, which are there 3 segments.

One type of arthropod that includes scorpions, spiders, and ticks. These have eight legs.

Adaptations

Well developed organs for eyesight.


Name two characteristics arthropods share. -

Jointed Legs, and jointed exoskeleton, a circulatory system, also.


Helpful and Harmful Arthropods


How do arthropods help people?

An example is the ladybug. It helps farmers and or gardenors by eating any insects that destroy the farmers flowers, and or crops.