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WorksheetsBill Nye The Science Guy Invertebrates Part 2
Total questions: 15
Worksheet time: 5mins
Sponges are called the simplest animals because they:
No internal organs
no nerves
no muscles
all of above
What are the cells that act as the sponge’s digestive system called?
both
collar cells
solar cells
none
By which process do sponges get oxygen from the water?
diffusion
spitting water out
both
none
Which phylum do sponges belong?
arthropoda
Animalia
none
Porfiria
How do sponges reproduce?
sexaully
asexually
both
none
True or False: Young sponges move through the water, but adult sponges don’t.
True
False
True or False: Sponges only live in water.
True
False
How many main groups (phyla) of worms are there?
6
1
5
3
Annelida are the ______________________worms.
Round
Flat
Segmented
none
How many “hearts” do earthworms have?
5
3
1
7
Characteristics that all worms have in common.
organ systems
Narrow Bodies without legs
All
Invertibrates
Describe the brain of a worm.
Complex
Simple
Brain is very simple. It is a knot of nerve tissue located in the head end.
All
Platyhelminthes are the ___________________worms.
round
Segmented
NaH There is NOTHING
Flat
Nematoda are the ____________________worms.
Round
Segmented
Flat
Boy get thAt OuT oF HeRE
How do earthworms move through soil.
Muciles
Bristles
Both
ThEy Don'T MoVE!!!!!
