Friday, March 20, 2020
The Way to Modernism essays
The Way to Modernism essays The Victorian Era was a period of morality, modesty and propriety. These qualities were reflected in the art, music and literature of this time. Many of these great artists, writers and musicians longed for change and began experimenting with new styles and techniques in their works. Their experiments led to a rejection of tradition and became the movement toward modernism. Georges Seurat, a post-impressionist, Henrik Ibsen, a writer and Igor Stravinsky, a musician all contributed their works to the movement toward the modern era. Georges Seurat was a post-impressionist in the 19th century. He used tiny dots of paint in order to create his works. His piece, A Sunday on La Grande Jatte is a perfect example of this technique. The public was quick to reject Seurats unique concept of pointillism. The doll-like figures used in his paintings were considered to be unrealistic and different from the traditional paintings they were use to seeing. The public was not open to change and the abandoning of tradition was shocking. Today, many of the geometrically shaped figures seen in his works have been created using the same concept in computer animation films. With this being said, it is evident that Georges Seurat has played a major role in the development of the modern era and computer science. Henrik Ibsen was the most famous play writer in his day. His play A Dolls House caused the most controversy and was banned from the stage. This play told a story about a woman who realizes the small part she had been playing in her husbands life. She states, Ever since the fist day we met, we have never exchanged so much as one serious word about serious things, referring to the fact that her husband never speaks to her about important situations. In the end she walks out the door and leaves her husband in a confused state of mind. The thought of a woman leaving her husband and being on her ow...
Wednesday, March 4, 2020
Ladybugs, Family Coccinellidae
Ladybugs, Family Coccinellidae Ladybugs, or ladybirds as they are also called, are neither bugs nor birds. Entomologists prefer the name lady beetle, which accurately places these lovable insects in the order Coleoptera. Whatever you call them, these well-known insects belong to the family Coccinellidae. All About Ladybugs Ladybugs share a characteristic shape- a dome-shaped back and a flat underside. Ladybug elytra display bold colors and markings, usually red, orange, or yellow with black spots. People often believe the number of spots on a ladybug tells its age, but this is not true. The markings may indicate a species of Coccinellid, although even individuals within a species can vary greatly. Ladybugs walk on short legs, which tuck away under the body. Their short antennae form a slight club at the end. The ladybugs head is almost hidden beneath a large pronotum. Ladybug mouthparts are modified for chewing. Coccinellids became known as ladybirds during the Middle Ages. The term lady references the Virgin Mary, who was often depicted in a red cloak. The 7-spot ladybird (Coccinella 7-punctata) is said to represent the Virgins seven joys and seven sorrows. Classification of Lady Beetles Kingdom - AnimaliaPhylum - ArthropodaClass ââ¬â InsectaOrder ââ¬â ColeopteraFamily - Coccinellidae The Ladybug Diet Most ladybugs are predators with ravenous appetites for aphids and other soft-bodied insects. Adult ladybugs will eat several hundred aphids before mating and laying eggs on the infested plants. Ladybug larvae feed on aphids as well. Some ladybug species prefer other pests, like mites, white flies, or scale insects. A few even feed on fungus or mildew. One small subfamily of ladybugs (Epilachninae) includes leaf-eating beetles like the Mexican bean beetle. A small number of beetles in this group are pests, but by far the majority of ladybugs are beneficial predators of pest insects. The Ladybug Life Cycle Ladybugs undergo complete metamorphosis in four stages: egg, larva, pupa, and adult. Depending on the species, female ladybugs may lay up to 1,000 eggs within a few months from spring to early summer. Eggs hatch within four days. Ladybug larvae resemble tiny alligators, with elongated bodies and bumpy skin. Most species go through four larval instars. The larva attaches itself to a leaf, and pupates. Ladybug pupae are usually orange. Within 3 to 12 days, the adult emerges, ready to mate and feed. Most ladybugs overwinter as adults. They form aggregates, or clusters, and take shelter in leaf litter, under bark, or other protected places. Some species, like the Asian multicolored lady beetle, prefer to spend the winter hidden in the walls of buildings. Special Adaptations and Defenses of Ladybugs When threatened, ladybugs reflex bleed, releasing hemolymph form their leg joints. The yellow hemolymph is both toxic and foul-smelling, and effectively deters predators. The ladybugs bright colors, red and black in particular, may signal its toxicity to predators as well. Some evidence suggests that ladybugs lay infertile eggs along with fertile ones, in order to provide a food source for hatching larvae. When the natural food supply is limited, the ladybug lays a higher percentage of infertile eggs. Range and Distribution of Ladybugs The cosmopolitan ladybug can be found throughout the world. Over 450 species of ladybugs live in North America, though not all are native to the continent. Worldwide, scientists have described over 5,000 Coccinellid species.
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