Recent Changes

Positive impact on humans
The positive impact on humans really affect weather we can grow crops or not. The worms will fertilize the soil that will make the crops more able to grow and wont die as easily.- Charles
on humans: The only thing i could find is that they are slimy and bunch up into a huge pile so they just sit there in your yard. --- Eden
1 interesting fact: annelid worms have a closed circulatory system. By: reynna

Picture- Both
Positive impact on humans- Erika
Round worm parasites affect most plant and animal species that makes them known as important agricultural pests.This can either be good or bad.
Negative impact on humans- Erika
1 interesting fact- James

Body plan: Flatworms have bilateral symmetry. If you would split a flatworm right down the middle, the body exactly mirrors itself. By:Becca
Picture
Positive impact on humans: Flatworms have a positive impact on humans because they need to live in clean water. If you don't find flatworms in water, that tells us that the water is not clean. Flatworms tell us important information when we find them. By: Becca.
Negative impact on humans
1 interesting fact

Nervous system An arthropods nervous system is made up of a ganglia and a ventral nerve cord that run parallel along its stomach. -Katie
Body plan An arthropods body is bilateral symmetric which means it has one line of symmetry. -Katie
Picture {tarantula.jpg}
PositiveBye: DJ
Positive impact on and lobsters. bye: DJ
Negative impact on humans Destroy crops. bye: DJ
1 interesting fact

Digestive system
Nervous system By Nathan: Cnidarians have a nervous system called a nerve net
Body plan: --ByMost cnidarian have radial symmetry, and all have an exoderm and endoderm.-By Anusha
Picture By Nathan:
{Jellyfish.jpg}

Round worms have a definite digestive system that runs through their whole body. Included in digestion there is a mouth, a pharynx, an intestine, and an anus. This type of system is a major adaptive jump from the sac-type, single opening digestive system that is found in the flatworm.
Nervous system- James
Roundworms have two cords that send impulses to itself. Roundworms have a ganglial nervous system with an anterior neural ring that represents a primitive cephalization
Body plan- James
Picture- Both

Body plan; Worms have a head, Reproductive System, and a tail --- Eden
Picture
{Worms.jpeg} Charles
{Worm.jpeg} Charles
Positive impact on humans
The positive impact on humans really affect weather we can grow crops or not. The worms will fertilize the soil that will make the crops more able to grow and wont die as easily.- Charles
Negative impact on humans:
By: reynna {Worm.jpeg} {Worms.jpeg}

Digestive system
Nervous system An arthropods nervous system is made up of a ganglia and a ventral nerve cord that run parallel along its stomach. -Katie
Body plan An arthropods body is bilateral symmetric which means it has one line of symmetry. -Katie
Picture {tarantula.jpg}
Positive impact on humans: humans eat arthropods like crabs and lobsters.

Cniderians
Digestive system
Nervous system By Nathan: Cnidarians have a nervous system called a nerve net
Body plan: Most cnidarians have radial symmetry, and all have an exoderm and endoderm.--By--By Anusha
Picture By Nathan:
{Jellyfish.jpg}
Positive impact on humans
Negative impact on humans
of cnidarians roamingroamingg the seas

Cniderians
Digestive system
Nervous system By Nathan: The jellyfish does not have a nervous system
Body plan: --ByMost cnidarians have radial symmetry, and all have an exoderm and endoderm.--By Anusha
Picture By Nathan:
{Jellyfish.jpg}
Positive impact on humans
Negative impact on humans
of cnidarians roaminggroaming the seas