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What tube-like structure enables an octopus to propel itself through water?
a siphon
What is a nephridiopore in a crayfish?
Nephridiopores in crayfish are part of their excretory system (for removing nitrogenous waste); crayfish propel water from the rear to the front and out the nephridiopores. It is analogous to how humans have to expend their liquid waste.
How does the dolphin get around?
a dolphin gets around by using its tail and flippers to propel itself through the water.
What is the function of the uropod in crayfish?
A uropod is used for swimming. Telson does the same thing.
How does a jellyfish move through the water?
A jellyfish moves through the water by contracting and relaxing its bell-shaped body, pushing water behind it to propel itself forward.
How did the spong move?
It sucks in water and then pushes it out to propel itself.
What force is it when a squid expels water out its back end?
The opposite direction of the water it moved.
How does a crocodile propel itself through water?
With the tail. useing his tail moving it back and forth he also sways his body a little
How does a jellyfish swim through the water?
A jellyfish swims by contracting and relaxing its bell-shaped body, pushing water out to propel itself forward. This movement is called pulsing, and allows the jellyfish to move through the water.
What does the volvox use to propel it self through water?
It spins to move through the water
How do crayfish exchange gas?
Crayfish exchange gases through gills located underneath their carapace. Water is drawn in through the crayfish's openings and passes over the gills, where oxygen is absorbed and carbon dioxide is released.
How does dileptus move?
Cillia
