Cody Waits
2nd block

PLATYHELMINTHES

CLASSIFICATION

• Kingdom- Animalia
• Phylum- Platyhelminthes

WHAT CHARACTERISTICS PUT THEM IN THEIR CLASS?

• Unsegmented
• Soft bodied invertebrates
• Has no body cavity
• No specialized circulatory
• Or respiratory organs

WHERE ARE THEY FOUND?

• They are found in...
• Oceans
• Fresh water
• Moist terrestrial habitats

WHAT REPRODUCTIVE PATTERNS OR METHODS DO THEY EXPRESS?

• Both male and female
• Asexual reproduction by fission
• Organism split in two

WHAT DO THEY EAT? RANGE?

• Being flat allows nutrients and oxygen to pass through
• By diffusion
• They have predators such as aquatic insects, tadpoles, and small fish

WHAT IS THEIR ROLE OR NICHE IN THE ENVIROMENT AROUND THEM?

• The tape worms role In its enviroment
• Is to control the population of species

INTERESTING FACTS

• If a flatworm is cut through the middle of the body
• Each half will regenerate the corresponding lost part
• Scientist can train a flatworm to find water in a maze
• If a flatworm is starved it is capable of shrinking its hatching size
• When fed has the ability to return to its original size

Schistosomiasis(snail fever)
In humans it decays lungs, liver,spleen,or intestine. Found in tropical areas with poor sanitation/sewage. It infects 240 million people in as many as 78 countries. Ranks second only to malaria. Estimated 280,000 killed each year.

WHAT IS THE MAIN DISEASE IN HUMANS CAUSING DEATH?

• A- chet fever
• B- Alzheimer
• C- Schistosomiasis
• D- None of the above

ANSWER IS