Rachel's Crayfish review November 16
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| molting | When an animal sheds its exoskeleton because it is increasing in size.
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| regeneration | the process a crayfish goes through to replace a lost body part
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| scavenger | an animal that hunts and eats dead plants on animals
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| exoskeleton | the outer hard protective covering that supports the crayfish arthropod
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| swimmerets | small limbs underneath a crayfish abdomen that move water to help breathing
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| enviroment | all the physical conditions that a living thing needs to survive
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| stimulus | An action that causes a response
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| An example of stimulus | When we tapped the crayfish on the back with an eraser
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| response | How an animal reacts to a stimulus
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| An example of response | The crayfish moved when it was tapped
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| Crayfish senses | sight, smell, touch, taste
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| which sense is the crayfish missing? | hearing
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| why do crayfish molt? | Crayfish molt because their bodies get bigger
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| How do crayfish protect themselves from predators? | Crayfish attack with pincers and quickly swim backwards. They get into a defensive posture (stand high on walking legs) or hide.
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| Why can crayfish stay out of the water for long periods of time? | Crayfish can track water under their carapace which keeps their gills moist.
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| What is the difference between a male and female crayfish | The female crayfish has one more set of swimmerets.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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