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.
Frogs are amphibians that undergo metamorphosis from tadpole to adult. They have bilateral symmetry with internal organs and systems that allow for movement on land or water. A frog's form and functions, such as its ability to leap and catch insects, are well-suited to its environment and lifestyle.
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 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.
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 have identifiable structures that serve different functions. They have eyes, antennae, a carapace, pincers, swimmerets, and a tail. Male and female crayfish can be differentiated by the size of their pincers and shape of their swimmerets. Crayfish need a habitat with food, water, shelter, space, and opportunities to hide. They will claim territories and defend their shelters from other crayfish.
Crayfish have identifiable structures that serve different functions for survival. These include eyes, antennae, walking legs, a tail, and a carapace. Males and females can be differentiated based on structures like swimmerets and pincers.
To thrive, crayfish require a habitat that provides food, clean water, shelter, and space. In the classroom, crayfish were kept in tubs with elodea plants, cat food, and plastic cups for shelter.
Through observations, students learned crayfish behaviors like hiding in shelters. Crayfish were found to be territorial and would defend their preferred hiding places and locations in the habitat.
Biology unit 7 organ systems crayfish notesrozeka01
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.
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.
Frogs are amphibians that undergo metamorphosis from tadpole to adult. They have bilateral symmetry with internal organs and systems that allow for movement on land or water. A frog's form and functions, such as its ability to leap and catch insects, are well-suited to its environment and lifestyle.
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 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.
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 have identifiable structures that serve different functions. They have eyes, antennae, a carapace, pincers, swimmerets, and a tail. Male and female crayfish can be differentiated by the size of their pincers and shape of their swimmerets. Crayfish need a habitat with food, water, shelter, space, and opportunities to hide. They will claim territories and defend their shelters from other crayfish.
Crayfish have identifiable structures that serve different functions for survival. These include eyes, antennae, walking legs, a tail, and a carapace. Males and females can be differentiated based on structures like swimmerets and pincers.
To thrive, crayfish require a habitat that provides food, clean water, shelter, and space. In the classroom, crayfish were kept in tubs with elodea plants, cat food, and plastic cups for shelter.
Through observations, students learned crayfish behaviors like hiding in shelters. Crayfish were found to be territorial and would defend their preferred hiding places and locations in the habitat.
Biology unit 7 organ systems crayfish notesrozeka01
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.
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.
- 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.
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.
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 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.
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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Fossil fuels are nonrenewable sources of energy that were formed from the remains of ancient plants and animals. They get their energy from the sun, which was originally stored by organisms that lived millions of years ago. Common examples of fossil fuels include coal, oil, and natural gas. This document also discusses temperature, thermal energy, and different temperature scales including Fahrenheit, Celsius, and Kelvin, noting that Kelvin scale defines absolute zero as the lowest possible temperature.
Here are the steps to solve the roller coaster energy problems:
1. PE at point A = mgh = (20 kg)(10 m/s^2)(250 m) = 50,000 J
2. KE at point A = 0 J (velocity is 0 m/s at the top)
3. ME at point A = PE + KE = 50,000 J + 0 J = 50,000 J
4. KE at point B = 1/2mv^2 = 1/2(20 kg)(200 m/s)^2 = 40,000 J
5. ME at point C = ME is conserved. ME at point A was 50,000 J.
6. PE at
1. Energy is the ability to do work or cause change. Work is done when a force causes an object to move, and is measured in Joules.
2. Kinetic energy depends on an object's mass and speed, and is calculated as KE=1/2mv^2. Potential energy depends on an object's mass and height, and is calculated as PE=mgh.
3. Mechanical energy is the total of an object's kinetic and potential energies, or ME=KE+PE. As an object moves, its kinetic energy increases as its potential energy decreases, keeping the total mechanical energy constant.
The document discusses energy and how it was used in the past compared to today. It prompts the reader to list what they know about energy and what they want to learn. It then asks the reader to define energy and provide 10 everyday ways they use energy. The document discusses how ancestors lived without modern conveniences like light bulbs, cars, and air conditioners. It prompts the reader to think about whether ancestors required energy in their daily activities. The reader is then asked to read a story about life 100 years ago and discuss differences in energy usage between the past and present. Finally, the document prompts the reader to draw an illustration showing the relationship between energy and work and explain their drawing.
The document discusses lower invertebrates and provides review questions about their characteristics and complexity. It asks questions about the simplest and most complex invertebrate phyla, types of symmetry, and parts of the crayfish. Review questions cover characteristics of flatworms and roundworms, differences in complexity between sponges and mollusks, common characteristics among listed groups, and types of symmetry. The document then shifts to discussing higher invertebrates and provides additional review questions comparing them to lower invertebrates.
Mammals, birds, reptiles, amphibians, and fish are the five classes of vertebrates. Mammals are warm-blooded and nurse their young, while birds are also warm-blooded but lay eggs. Reptiles, amphibians, and fish are cold-blooded and many reproduce by laying eggs, though some amphibians hatch as larvae.
Birds and reptiles can be compared and contrasted using a Venn diagram. Some key differences are that birds are endothermic and have feathers for insulation, while reptiles are ectothermic and have scales. Both lay eggs but birds care for their young after hatching while most reptiles do not provide parental care.
Birds have adaptations for flight including feathers and hollow, lightweight bones. They lay amniotic eggs and maintain a high body temperature through endothermy, panting to cool off and eating frequently. Birds also have a four-chambered heart and double-looped circulatory system.
This document discusses the characteristics and adaptations of reptiles. It notes that reptiles and amphibians both share characteristics with chordates. Reptiles have developed adaptations to live on land such as dry scales, thick skin, and amniotic eggs to prevent water loss. Their circulatory system includes a three-chambered heart and double-looped circulatory system. Reptiles are ectothermic and must rely on external heat sources to regulate their body temperature.
Fish and amphibians share characteristics with all chordates, such as having a notochord and dorsal nerve cord. Reptiles evolved adaptations like scales, thick skin, and amniotic eggs to prevent water loss and live on land. Reptiles have three-chambered hearts and double-looped circulatory systems, and are ectothermic, maintaining their body temperature through their surroundings. Birds further adapted for land with feathers for flight, thin hollow bones, and the ability to regulate their own high body temperatures through panting and a high metabolism.
This document contains a series of slides from a frog dissection guide. It lists and numbers various external and internal structures of frogs such as the mouth parts, internal organs, and reproductive systems of male and female frogs. The slides provide labels for anatomical structures like the ventricle, auricle, liver, gallbladder, intestines, kidneys, testes, ovaries and more.
Frog dissection is a common biology lab activity where students examine the internal anatomy of frogs. The purpose is for students to learn frog anatomy through direct observation of organs like the heart, lungs, stomach and intestines. This document likely contains diagrams and pictures to help guide students through the dissection process and identify internal structures.
Amphibians are vertebrates that breathe through lungs and thin, moist skin. They have a three-chambered heart and double-loop circulatory system that is more efficient than the single-loop system of fish. Amphibians go through a metamorphosis where tadpoles with tails and gills transform into adults without tails that use lungs to breathe on land. There are three main groups of amphibians: frogs and toads, salamanders, and caecilians.
- 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.
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.
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 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.
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.
Make any changes or
additions you think would
improve it.
2. Share your graphic organizer
with a partner and have them
provide feedback. Make any
final changes based on the
feedback.
Fossil fuels are nonrenewable sources of energy that were formed from the remains of ancient plants and animals. They get their energy from the sun, which was originally stored by organisms that lived millions of years ago. Common examples of fossil fuels include coal, oil, and natural gas. This document also discusses temperature, thermal energy, and different temperature scales including Fahrenheit, Celsius, and Kelvin, noting that Kelvin scale defines absolute zero as the lowest possible temperature.
Here are the steps to solve the roller coaster energy problems:
1. PE at point A = mgh = (20 kg)(10 m/s^2)(250 m) = 50,000 J
2. KE at point A = 0 J (velocity is 0 m/s at the top)
3. ME at point A = PE + KE = 50,000 J + 0 J = 50,000 J
4. KE at point B = 1/2mv^2 = 1/2(20 kg)(200 m/s)^2 = 40,000 J
5. ME at point C = ME is conserved. ME at point A was 50,000 J.
6. PE at
1. Energy is the ability to do work or cause change. Work is done when a force causes an object to move, and is measured in Joules.
2. Kinetic energy depends on an object's mass and speed, and is calculated as KE=1/2mv^2. Potential energy depends on an object's mass and height, and is calculated as PE=mgh.
3. Mechanical energy is the total of an object's kinetic and potential energies, or ME=KE+PE. As an object moves, its kinetic energy increases as its potential energy decreases, keeping the total mechanical energy constant.
The document discusses energy and how it was used in the past compared to today. It prompts the reader to list what they know about energy and what they want to learn. It then asks the reader to define energy and provide 10 everyday ways they use energy. The document discusses how ancestors lived without modern conveniences like light bulbs, cars, and air conditioners. It prompts the reader to think about whether ancestors required energy in their daily activities. The reader is then asked to read a story about life 100 years ago and discuss differences in energy usage between the past and present. Finally, the document prompts the reader to draw an illustration showing the relationship between energy and work and explain their drawing.
The document discusses lower invertebrates and provides review questions about their characteristics and complexity. It asks questions about the simplest and most complex invertebrate phyla, types of symmetry, and parts of the crayfish. Review questions cover characteristics of flatworms and roundworms, differences in complexity between sponges and mollusks, common characteristics among listed groups, and types of symmetry. The document then shifts to discussing higher invertebrates and provides additional review questions comparing them to lower invertebrates.
Mammals, birds, reptiles, amphibians, and fish are the five classes of vertebrates. Mammals are warm-blooded and nurse their young, while birds are also warm-blooded but lay eggs. Reptiles, amphibians, and fish are cold-blooded and many reproduce by laying eggs, though some amphibians hatch as larvae.
Birds and reptiles can be compared and contrasted using a Venn diagram. Some key differences are that birds are endothermic and have feathers for insulation, while reptiles are ectothermic and have scales. Both lay eggs but birds care for their young after hatching while most reptiles do not provide parental care.
Birds have adaptations for flight including feathers and hollow, lightweight bones. They lay amniotic eggs and maintain a high body temperature through endothermy, panting to cool off and eating frequently. Birds also have a four-chambered heart and double-looped circulatory system.
This document discusses the characteristics and adaptations of reptiles. It notes that reptiles and amphibians both share characteristics with chordates. Reptiles have developed adaptations to live on land such as dry scales, thick skin, and amniotic eggs to prevent water loss. Their circulatory system includes a three-chambered heart and double-looped circulatory system. Reptiles are ectothermic and must rely on external heat sources to regulate their body temperature.
Fish and amphibians share characteristics with all chordates, such as having a notochord and dorsal nerve cord. Reptiles evolved adaptations like scales, thick skin, and amniotic eggs to prevent water loss and live on land. Reptiles have three-chambered hearts and double-looped circulatory systems, and are ectothermic, maintaining their body temperature through their surroundings. Birds further adapted for land with feathers for flight, thin hollow bones, and the ability to regulate their own high body temperatures through panting and a high metabolism.
This document contains a series of slides from a frog dissection guide. It lists and numbers various external and internal structures of frogs such as the mouth parts, internal organs, and reproductive systems of male and female frogs. The slides provide labels for anatomical structures like the ventricle, auricle, liver, gallbladder, intestines, kidneys, testes, ovaries and more.
Frog dissection is a common biology lab activity where students examine the internal anatomy of frogs. The purpose is for students to learn frog anatomy through direct observation of organs like the heart, lungs, stomach and intestines. This document likely contains diagrams and pictures to help guide students through the dissection process and identify internal structures.
Amphibians are vertebrates that breathe through lungs and thin, moist skin. They have a three-chambered heart and double-loop circulatory system that is more efficient than the single-loop system of fish. Amphibians go through a metamorphosis where tadpoles with tails and gills transform into adults without tails that use lungs to breathe on land. There are three main groups of amphibians: frogs and toads, salamanders, and caecilians.
1. Vertebrates share four key characteristics: a notochord, hollow nerve cord, pharyngeal gill pouches, and a tail.
2. Fish are the largest and simplest group of vertebrates. They are ectothermic, have fins and scales, and a lateral line.
3. Fish have a closed circulatory system with two heart chambers that pumps blood to the gills and body for gas exchange.
Arthropods are the most successful group of animals on Earth, making up over 75% of all animal life. They have a segmented body, jointed appendages, a hard exoskeleton that many molt to shed and grow, and undergo complete metamorphosis from egg to adult. Arthropods have bilateral symmetry, organs and systems, eat a wide variety of foods, and reproduce sexually. They are found globally in nearly all environments.
The document provides information about mollusks and annelids. It notes that mollusks are one of the most diverse animal groups, have a radula and live in various habitats. Their body plans include bivalves, gastropods and cephalopods. Annelids are segmented worms that fertilize soil, have a closed circulatory system and brain, and move by creeping along using muscles.
Flatworms and cnidarians share some basic characteristics like having simple tissue organization but differ in key aspects like flatworms having bilateral symmetry and a digestive system while cnidarians do not. Some flatworms like tapeworms are parasitic and can infect humans, causing illnesses if meat or water is ingested that contains the parasite larvae. Roundworms also infect many humans and include parasites like hookworms that burrow into the skin and travel to the bloodstream, feeding on blood.
This document provides information about sponges and cnidarians. It discusses their defining characteristics, including that sponges filter feed without a digestive system, have skeletons made of spicules or spongin, and can reproduce asexually through budding. It also notes that cnidarians have radial symmetry, prey on other organisms using stinging cells called cnidocytes, and can reproduce both sexually and asexually through budding. The document compares and contrasts these two early animal phyla.
The document provides instructions for students to complete tasks related to a new textbook including putting their name on the cover, filling out a form, and working on a packet. It then discusses the characteristics that all animals share such as being multicellular, reproducing sexually, developing from embryos, having specialized organs, and ability to move. Students are asked to choose an animal and explain why it is an animal by using the characteristics without directly stating the underlined words.
1. Crayfish Conclusion… Paragraph 1: What is an invertebrate What is an arthropod Thesis/topic of crayfish Paragraph 2: Symmetry Organs Digestion Movement Paragraph 3: How does “Form fit function” in the crayfish? Why is the arthropod considered advanced?
2. Warm up… To what phylum do crayfish belong? What are the names of the 3 segments in the arthropod body? What are the names of the 2 segments in the crayfish body?