Daphnia
Introduction: Daphnia is a large genus comprising over 200 species of small freshwater crustaceans that belongs to the family Daphniidae and the order “Cladocera”. The common name of Daphnia is water flea and this name is due to jerky-flea like swimming movement. Daphnia often live is freshwater bodies of relative different quality including swamps, lakes, streams and rivers.
Description: Daphnia in general are small and may range from as small as 0.5 mm to as long as 5.0 mm in length, sometimes more; and hence some daphnia species can be seen by naked eyes (e.g. Daphnia magna) , while others must are microscopic (e.g. Daphnia pulex). Usually females are larger than males and have a brood chamber under their carapace where eggs are kept.
The uncalcified
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Feeding habits and role in the food chain: Daphnia feeds mainly on unicellular algae, yeast and bacteria. Upon feeding, Daphnia uses its third pair legs to filter the water allowing the proper food size in while keeping the large particles out. Beating the water with the other sets of legs create water current that brings in additional food.
The feeding habit of Daphnia explains their ecological role as their lower density and consequently less food consumption could lead to algal overgrowth along with possible decline in dissolved oxygen during night. On the other hand, the importance of Daphnia in the food chain is significant as Daphnia is preyed upon by several aquatic organisms such as tadpoles, salamanders, aquatic insects, and many of small fish species. Ultimately, and by the end of the chain, food fish for human consumption could be affected as a result of the negative changes in Daphnia
It is clear that John Wyndham wrote The Chrysalids as a warning for today’s society, based on the comparisons that are drawn between the society of Waknuk, the Old People, Sea land, and our current society. More specifically, the current technological advancements, the existence of fundamentalist groups, and the slowly changing concept of “freedom of speech”. The events of Tribulation serve as a warning to today’s society. Many current day countries have nuclear weaponry, chemical weaponry, bombs, and other massively destructive tools at their disposal. Comparably, the Old People had very advanced technology and the reader knows that a nuclear war has taken place based on the existence of such extreme mutations seen in both plants and people.
Anacostia is a historic neighborhood in Washington DC, located east of the Anacostia River. First appearing on the oldest map of Capitan John Smith, Anacostia was once home to a Native American tribe called Nacotchtank. These natives often referred to themselves as Anaquashtanks, which means trading village in their native language, Algonquian. Anacostia once served as a prime located as a trading port for natives and settlers in the 1600’s. However, Anacostia’s significance faded away, it is no longer know for its trading ports but for its high crime and poverty rates in the District.
The Asteroidea class, also known as the sea stars, has many common characteristics. Firstly, all sea stars have flat, star-shaped bodies as well as a central disc with radiating arms/rays protruding out. Typically, seastars has five arms but certain species can have up to fifty arms! The size of the sea stars is not consistent through the different species therefore varies from one centimeter to three feet. The skeletal system is a key aspect for the survival of a sea stars.
The consumers are cassowary, insects, ulysses, butterflies, whichetty grub, spotted cuscus, sugar glider, goanna, azure kingfisher, and feral pigs. Cassowaries eat the reptiles and the crocodiles eat the platypuses. Estuarine Crocodile is one of the well known species in Daintree. According to the article titled Fauna of the Daintree Rainforest. (n.d.)
Lysistrata, by the Greek writer Aristophanes, tells a Greek comedy set in ancient Greek times around 411 B.C. The story places us in Athens were there is a war against the Athens and Spartans. This war was a long one and the wives were missing their men. Soon women grew tired of the war. A women named Lysistrata took it upon herself to take action against the war.
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If the female has already mated with a male she is able to extrude her genitals so the male is not able to mate with
The union of both sexes is a notable metaphor in both “Symposium” and “Lysistrata”; however, the nature of the love between the sexes draws a distinction between both works. In Symposium, Aristophanes described how both sexes were so powerful when united; and when they were separated, human beings still strived to be united once more by any means. On the other hand, in Lysistrata the characters were already married and united; however, women found their true strength when they started a psychological war on their men. Even though both works drew the readers’ attention to the need for love, Symposium emphasizes the union of sexes in a way that the characters in Lysistrata will never reach; where love is not only about sex and physical attraction, but it’s also about a healthy relationship occupied with affection and caring.
Bass are a predatory fish, this means that they have to eat other living animals to survive. To hunt, bass will hide in structure, such as a submerged log, or some grass and ambush their prey. When their prey swims by the fish will swim out quickly and eat the food. Bass will eat anything that swims, they will eat minnows, crawfish, frogs,worms and even mice and ducklings that fall into the water. Bass will also eat other fish and sometimes lizards that fall into the water.
The book The Chrysalids is a unique book with suspense, mystery, and different ways of how people view life. With every good book comes a catchy title like “The Chrysalids” but, what does the title mean? How does it relate to the story being told? Personally, I don’t know the meaning of chrysalids although it’s a very interesting word and so simple so it must have some meaning to the book. The book has a very unique storyline with an intriguing title, but what is the true meaning behind the title?
What was your opinion on Greek Life before you joined your sorority? Before I didn’t know much about it. I was in a professional music fraternity that I joined, Gamma Rho and they were professional
Corotto, F., Ceballos, D., Lee, A., & Vinson, L. (2010). Making the Most of the Daphnia Heart Rate Lab: Optimizing the Use of Ethanol, Nicotine & Caffeine. The American Biology Teacher , 176-179. The purpose of this article was to test the effects of chemicals on Daphnia magna.
Aristotle said that the best plays have both anagnorisis and peripetia which occur nearly at the same time. In the majority of plays and movies there are examples of anagorisis and peripetia. They both effect the play or movie immensely. Sometimes it may work but sometimes it may not. Anagnorisis is a moment in a play or any other work when a character makes a critical discovery.
Medea is a Greek Tragedy Play written by Euripides. The play takes place in Corinth, Greece. A nurse in this play explains the events and what mainly lead to the crisis in this play. Previously, Medea and Jason achieved many adventures and she was the one who helped him secure the Golden Fleece, by killing her brother, and she also fled her country and family for Jason. She and Jason had two sons together, and settled in Corinth, where they gained a respectable reputation.
Fertilization is internal, and sperm are stored within the female’s body in a seminal receptacle and the paired spermathecae. Females reach the peak of their egg production between the fourth and seventh day after their emergence. During this time, they lay eggs almost continuously at a rate of 50–70 eggs per day. The pupal stage lasts for 3–4 days, after which the adult fly, or imago, emerges from the pupal case (eclosion).