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Crayfish dissection
Crayfish are arthropods belonging to the class Crustacea. They have a hard exoskeleton made of chitin, a segmented body, and appendages including antennae, antennaules, mandibles, maxillae, maxillipeds, chelipeds, walking legs, swimmerets, uropods, and a telson. Crayfish have an open circulatory system with a heart and hemolymph but no veins. They have compound eyes, a ventral nerve cord, and can autotomize and regenerate limbs to escape predators.
Beatriz Rodríguez - La problemàtica de les espècies exòtiques invasores als e...
Beatriz Rodríguez - La problemàtica de les espècies exòtiques invasores als e...Medi Ambient. Generalitat de Catalunya
Informe - Seguiment d'espècies al·lòctones invasores al Riu Polop i del Parat...
Informe - Seguiment d'espècies al·lòctones invasores al Riu Polop i del Parat...ProjecteRiuPolopAlcoi
Petersohn_Megan - Celebration of Learning
- The study examined differences in crayfish abundance and diet between two habitats in Main Pond at Greenwing Laboratory: a shallow, open North habitat and a deeper, more vegetated West habitat.
- Crayfish abundance was higher in the North habitat and at intermediate distances (10m) from shore, but diet did not differ between habitats.
- While vegetative cover and other factors like depth and temperature affected crayfish distribution, diet was similar possibly because the same food sources were available throughout the pond.
Use of Social Media at Vodokanal
The State Unitary Enterprise “Vodokanal of St. Petersburg” provides water supply, wastewater treatment, and operation of fountains and public toilets for 5 million citizens. To raise environmental awareness, Vodokanal created the Da-Voda.com website and social media pages featuring a character named the Neva Crayfish. The multimedia website and social media accounts provide educational information about water conservation to attract more users. Since the launch of Da-Voda.com, water consumption in St. Petersburg has decreased steadily and the percentage of households with water meters has increased, showing the benefits of Vodokanal's efforts to promote a culture of responsible water usage.
Cray fish
Crayfish are found in wet places like Texas and Mississippi. They have claws and a head and eat things like slugs, dead fish, insects, algae, and other dead sea creatures. Crayfish are preyed upon by fish, alligators, humans, and raccoons. There are different colors of crayfish including blue, red, orange, and white, with red being the most common. The document discusses the body parts and diet of crayfish, what predators eat crayfish, and why the authors chose to focus on crayfish.
Biology unit 7 organ systems crayfish notes
The document provides notes on the external and internal anatomy of crayfish. It describes the key external parts including the carapace, chelipeds, maxillipeds, swimmerets, antennae, and gills. Internally, it outlines the encephalon (brain), green gland, stomach, heart, intestine, and sex organs. Dissection instructions are provided to identify and examine the external and internal organs.
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Crayfish dissection
Crayfish are arthropods belonging to the class Crustacea. They have a hard exoskeleton made of chitin, a segmented body, and appendages including antennae, antennaules, mandibles, maxillae, maxillipeds, chelipeds, walking legs, swimmerets, uropods, and a telson. Crayfish have an open circulatory system with a heart and hemolymph but no veins. They have compound eyes, a ventral nerve cord, and can autotomize and regenerate limbs to escape predators.
Beatriz Rodríguez - La problemàtica de les espècies exòtiques invasores als e...
Beatriz Rodríguez - La problemàtica de les espècies exòtiques invasores als e...Medi Ambient. Generalitat de Catalunya
Informe - Seguiment d'espècies al·lòctones invasores al Riu Polop i del Parat...
Informe - Seguiment d'espècies al·lòctones invasores al Riu Polop i del Parat...ProjecteRiuPolopAlcoi
Petersohn_Megan - Celebration of Learning
- The study examined differences in crayfish abundance and diet between two habitats in Main Pond at Greenwing Laboratory: a shallow, open North habitat and a deeper, more vegetated West habitat.
- Crayfish abundance was higher in the North habitat and at intermediate distances (10m) from shore, but diet did not differ between habitats.
- While vegetative cover and other factors like depth and temperature affected crayfish distribution, diet was similar possibly because the same food sources were available throughout the pond.
Use of Social Media at Vodokanal
The State Unitary Enterprise “Vodokanal of St. Petersburg” provides water supply, wastewater treatment, and operation of fountains and public toilets for 5 million citizens. To raise environmental awareness, Vodokanal created the Da-Voda.com website and social media pages featuring a character named the Neva Crayfish. The multimedia website and social media accounts provide educational information about water conservation to attract more users. Since the launch of Da-Voda.com, water consumption in St. Petersburg has decreased steadily and the percentage of households with water meters has increased, showing the benefits of Vodokanal's efforts to promote a culture of responsible water usage.
Cray fish
Crayfish are found in wet places like Texas and Mississippi. They have claws and a head and eat things like slugs, dead fish, insects, algae, and other dead sea creatures. Crayfish are preyed upon by fish, alligators, humans, and raccoons. There are different colors of crayfish including blue, red, orange, and white, with red being the most common. The document discusses the body parts and diet of crayfish, what predators eat crayfish, and why the authors chose to focus on crayfish.
Biology unit 7 organ systems crayfish notes
The document provides notes on the external and internal anatomy of crayfish. It describes the key external parts including the carapace, chelipeds, maxillipeds, swimmerets, antennae, and gills. Internally, it outlines the encephalon (brain), green gland, stomach, heart, intestine, and sex organs. Dissection instructions are provided to identify and examine the external and internal organs.
Biol 11 Lesson 3 April 11 - Ch. 28 Crayfish Dissection
The document provides homework assignments for students, which include:
1) Completing pre-lab questions and reading about the upcoming crayfish dissection lab.
2) Continuing to work on a Phylum Facebook project due the following week where students research and report on an assigned organism.
3) Beginning to make cue cards for the next chapter, due at an upcoming review day.
The document also provides links to virtual crayfish dissection resources and instructions to complete the actual lab and turn it in by the end of class. Students are assigned additional review and project work for the next class.
Crayfish conclusion
Crayfish are advanced arthropods that belong to the phylum Arthropoda. They have a segmented body adapted for movement, digestion, and survival. Their form fits their function, with organs and symmetry suited to their lifestyle in waterways.
Cindy crayfish
The document describes the structures, behaviors, and habitat of crayfish. It notes that crayfish have eyes for looking, pinchers for grabbing and fighting, swimmerets for holding eggs, and walking legs. It observes their behaviors when left alone, touched in different areas, and with another crayfish. Their habitat includes places with water, elodea, flower pots, rocks, and sometimes tanks. However, human activities like littering plastic bags and dumping toxic waste in streams negatively impact crayfish habitats.
Crayfish bio
The crayfish has a complete digestive system that begins with the mouthparts breaking apart food. Food particles pass through the esophagus and enter the stomach chambers for further grinding and sorting before entering the midgut for absorption of nutrients. The hindgut receives remaining particles from the midgut and expels wastes through the anus. Key functions of the digestive system include breaking down and absorbing nutrients from food.
Crayfish dissection diagrams
This document contains diagrams and descriptions of the external and internal anatomy of a crayfish. It identifies and describes key external structures like the cephalothorax, abdomen, appendages, eyes and sensory organs. Internally, it outlines the location of organs like the heart, hepatopancreas gland, stomach and nerve cord. Descriptions are provided of both male and female reproductive structures and swimming appendages.
Crayfish lab
The document discusses quantifying changes in hemolymph glucose concentration in crayfish in response to different environmental conditions. It provides background on glucose regulation and production of crustacean hyperglycemic hormone in crayfish. The experiment aims to measure changes in crayfish hemolymph glucose levels when exposed to variations in temperature, salinity, and stress by taking hemolymph samples before and after applying each treatment and comparing glucose concentrations. Safety is emphasized when handling crayfish and needles.
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Biol 11 Lesson 3 April 11 - Ch. 28 Crayfish Dissection
The document provides homework assignments for students, which include:
1) Completing pre-lab questions and reading about the upcoming crayfish dissection lab.
2) Continuing to work on a Phylum Facebook project due the following week where students research and report on an assigned organism.
3) Beginning to make cue cards for the next chapter, due at an upcoming review day.
The document also provides links to virtual crayfish dissection resources and instructions to complete the actual lab and turn it in by the end of class. Students are assigned additional review and project work for the next class.
Crayfish conclusion
Crayfish are advanced arthropods that belong to the phylum Arthropoda. They have a segmented body adapted for movement, digestion, and survival. Their form fits their function, with organs and symmetry suited to their lifestyle in waterways.
Cindy crayfish
The document describes the structures, behaviors, and habitat of crayfish. It notes that crayfish have eyes for looking, pinchers for grabbing and fighting, swimmerets for holding eggs, and walking legs. It observes their behaviors when left alone, touched in different areas, and with another crayfish. Their habitat includes places with water, elodea, flower pots, rocks, and sometimes tanks. However, human activities like littering plastic bags and dumping toxic waste in streams negatively impact crayfish habitats.
Crayfish bio
The crayfish has a complete digestive system that begins with the mouthparts breaking apart food. Food particles pass through the esophagus and enter the stomach chambers for further grinding and sorting before entering the midgut for absorption of nutrients. The hindgut receives remaining particles from the midgut and expels wastes through the anus. Key functions of the digestive system include breaking down and absorbing nutrients from food.
Crayfish dissection diagrams
This document contains diagrams and descriptions of the external and internal anatomy of a crayfish. It identifies and describes key external structures like the cephalothorax, abdomen, appendages, eyes and sensory organs. Internally, it outlines the location of organs like the heart, hepatopancreas gland, stomach and nerve cord. Descriptions are provided of both male and female reproductive structures and swimming appendages.
Crayfish lab
The document discusses quantifying changes in hemolymph glucose concentration in crayfish in response to different environmental conditions. It provides background on glucose regulation and production of crustacean hyperglycemic hormone in crayfish. The experiment aims to measure changes in crayfish hemolymph glucose levels when exposed to variations in temperature, salinity, and stress by taking hemolymph samples before and after applying each treatment and comparing glucose concentrations. Safety is emphasized when handling crayfish and needles.
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Biol 11 Lesson 3 April 11 - Ch. 28 Crayfish Dissection
Biol 11 Lesson 3 April 11 - Ch. 28 Crayfish Dissection