Show:
Flat Worms
Round Worms
Segmented Worms
Giant Tube Worms
Arrow Worms
100
What kind of digestive tract do Flatworms have?
What is a Two Way?
100
Name of the singular skin layer?
What is a cuticle?
100
Name of the feet structures under segmented worms?
What is setae?
100
Type of circulatory system Giant Tube Worms have
What is a closed circulatory system?
100
The three body regions of Arrow Worms
What is the Head, Trunk, & Tail
200
Describe the movement of Planarians
They move their bodies right to left or in a side to side motion.
200
The term used to describe a species having two separate sexes
What is Dioecious?
200
What are the two kinds of muscles found in segmented worms?
Circular & Longitudinal
200
The organ that exchanges materials with the environment
What is the Red Plume?
200
What organ perceives the sense of touch in Arrow Worms?
What is Papillae?
300
Why do tape worms have four suckers as opposed to one sucker? Need both reasons for full credit.
To have more points of attachment to stay connected to the host and to obtain more nutrients.
300
What Phylum do round worms belong to
What is Nematoda?
300
What Phylum do segmented worms belong to?
What is Annelida?
300
What is the class name of Giant Tube Worms?
What is Polychaeta?
300
The class arrow worms belong to?
What is Sagittoidea?
400
The three classes of organisms pertaining to Flat Worms
What is Planarian, Cestoda, and Trematoda?
400
Name of the process where all metabolic activities stop in response to adverse environments
What is cryptobiosis?
400
What is the function of the Clitellum?
To secrete a viscid sac where eggs are deposited.
400
What are the four stages of the life cycle of Giant Tube Worms?
What is Zygote, Pelagic, Metatrochophore, and adult
400
What kind of eyes do Arrow worms have? What is composed in these eyes? Give an example of an organism with these types of eyes.
Compound Eyes. The eyes are composed of multiple ocelli being fused together. Insects have these kinds of eyes.
500
The three skin layers of Flat Worms
What is the ectoderm, mesoderm, and endoderm?
500
What environments can round worms be found in
What is the ocean and soil?
500
How are segmented worms able to regenerate lost parts so easily?
Each segment has its own set of organs so when segments are lost, the organism is able to easily seal off the wound by the septa pinching off. The segments then divide to return the organism to its original length.
500
Why do giant tube worms need symbiotic bacteria to survive?
Due to the environment where giant tube worms live (Ocean Bottom near fault lines), nutrients are scarce, so the bacteria provide an energy source by converting toxic molecules H2S into usable molecules such as oxygen.
500
Describe how Arrow Worms move? Give two examples of organisms that move with the same type of motion?
Arrow worms swim in a dorso-ventral undulating motion. Organisms with the same type of movement include Dolphins, Whales, Seals, Narwals, & Walruses