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What can eat crayfish?
Humans
What do crayfish and humans have that snails do not have?
Quite obviously crayfish, humans, and many other animals have apendages. Snails, however do not.
What is the rusty crayfish's predator?
Humans
What is a predator to a crayfish?
the natural predator to the crayfish is the common seagull
What does a crayfish's heart do?
A crayfish's heart works like a humans. it pumps blood through the body.
What are the seven levels of a living thing?
humans- crayfish-
What 2 systems of a crayfish are most unlike human systems?
Exoskeleton: Crayfish have a hard shell, and no bones. That makes crayfish invertebrates (no spine). Gills: Crayfish respire underwater through gills, where humans use lungs. The circulatory system is the second one, the reason for this being that crayfish have no blood vessels (and humans obviously do).
What structure in humans are the digestive glands comparable with crayfish?
The structure in humans that the digestive glands are comparable with crayfish are the glands that are found in the mouth and the stomach. These glands will secrete salivary amylase and HCI respectively to aid digestion in humans.
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 location of the heart in crayfish differ from the location of the heart in humans?
humans hearts are in their chest but crayfishs hearts are in their but
To what structures in humans ar the Crayfish digestive glands comparable?
NOTHING
Do brown trout eat crayfish?
Not only do they eat crayfish, it is a common food source for larger browns.
