II. Introduction Part of the arthropod phylum, grasshoppers possess the typical features of an exoskeleton and a segmented body. These organisms are also part of the insect class which is characterized by the three major body segments and six legs. Along with its larger size, the grasshopper is a good example to study the anatomy of insects. The procedure which was done allowed the examination of the external and internal anatomy through first external observations and then a dissection to allow internal observation. III. Materials and Methods Preserved grasshopper dissection tray lined with newspaper dissection manual dissection kit hand lens glue index card Tap the exoskeleton with your fingernail. Examine the joints in the skeleton. Note how they are flexible and can freely move. Note that the head has a wide range of movement which is advantageous because the grasshopper can better use its sense organs. Use your probe to push up the labrum, the upper lip. Clasp it in the tweezers and with a firm yank, pull it out. Glue it to the cardboard and label it. Observe the jagged edges of the left and right mandibles. Using your tweezers, pull these out carefully and glue them to the cardboard and label them. Use your probe to find the lower lip, the labium. Observe the thin labial palps. Pull out the labium. Glue it to the cardboard and label it. Finally, locate the two-piece lower jaw, the left and right maxillae, attached to it. Pull out the two parts. Glue and label them. Observe the 3 pairs of jointed legs. Remove and glue them to the cardboard. Label them. Pick up the large wings. Observe the second pair underneath. Note how light and thin they are. Count the segments on the abdomen. Use the hand le... ... middle of paper ... ...etrieved February 23, 2014, from http://www.answerbag.com/q_view/2024907 Insect morphology. (2014, February 18). Wikipedia. Retrieved February 23, 2014, from http://en.wikipedia.org/wiki/Insect_morphology Molecular Expressions: Science, Optics & You - Olympus MIC-D: Darkfield Gallery - Grasshopper Malpighian Tubules. (n.d.). Molecular Expressions: Science, Optics & You - Olympus MIC-D: Darkfield Gallery - Grasshopper Malpighian Tubules. Retrieved February 23, 2014, from http://micro.magnet.fsu.edu/optics/olympusmicd/galleries/darkfield/grasshoppermalpighian1.html UNM Biology Undergraduate Labs. (n.d.). Untitled 1. Retrieved February 23, 2014, from http://biology.unm.edu/ccouncil/Biology_203/Summaries/Protostomes.htm grasshopper dissection. (n.d.). grasshopper dissection. Retrieved February 22, 2014, from http://www.biologyjunction.com/grasshopper_dissection.htm
There is no doubt that arthropods are an extremely successful group of animals, with an estimated 5-10 million species worldwide[1], and this can be attributed to having an exoskeleton; it provides many benefits, such as protection from parasitism and other threats. However, one major disadvantage of having an exoskeleton is the limitations that an inelastic cuticle can place on growth. The exoskeleton provides protection, but when freshly moulted the animal is soft and vulnerable, as well as having limited mobility and use of appendages; many seek shelter before moulting[2]. There are similarities and differences between the moult cycles of all the arthropods, however only crustaceans and insects will be discussed here.
The Effect of Gas Exchange on a Locusts' Breathing Aim- To see the effect of Carbon dioxide on a locusts' ventilation rate. Method- Since the locust was already in the 20cm³ plastic syringe held in a clamp, our first step was to monitor its ventilation movements. By looking at the abdomen, we could clearly see the ventilation movements of the locust, which we counted for thirty seconds. We repeated this three times under normal atmospheric conditions.
Myotis lucifugus are easily identified when they're being handled, but are hard to tell apart from other species when in flight. Their fur is glossy with a variety of colors ranging from tan to red or dark brown. Their stomachs are a lighter color, with their wings and leg being almost black. Their wings, ears and face have little or no fur on them. Little brown bats have a wingspan that can reach 11in, weigh anywhere from 5 to 14g and have a body length between 2.5 to 4in. Females are usually bigger than males, allowing them to easily carry their pups. Their distinct wings, which set them apart from every other mammal and birds are a thin extension of skin that is supported by bones that have evolved from regular forelimbs. (Myers, P. "Bat Wings and Tails." 2014). They fly at an average of 12 miles/hour but can reach up to 22 miles/hour. Their fore and hind limbs have five medapodial. Although those characteristics might seem similar to many other bats, theres a big difference in their skull. Little Brown Bats lacks a saggital crest, which is where the jaw muscles would be attached. They have 38...
The Grasshopper and the Bell Cricket, written by Yasunari Kawabata, is a visual literary piece. This short story uses many symbols and subtle messages to convey the theme of life, hope, and innocent love. Some of the symbols that supports the overall theme are the grasshopper and the bell cricket, the handmade and the store-bought lanterns in a variety of colors, and the scene where Fujio tried to get Kiyoko’s attention. Although it is seen through the images of varicolored lanterns and in the insect hunting, the theme is clearer in the last three paragraphs of the story. The use of a narrator to relay the observation on the children also aided in the build-up to the theme. All these visual imageries throughout the short story were not only
The soleus, gastrocnemius and tibialis anterior contract isometrically to keep the ankle stable at 90 degrees (Teachpe.com n.d.) (The previous reference was used to identify key joint types and muscles throughout my analysis). The knee joint is extended when in the standing position, to stabilize this joint the biceps femoris, semi-mebranosus, semi-tendonosus (hamstrings) and the rectus femoris, vastus lateralis, vastus transcriptis and vastus medialis (quadriceps) co-contract isometrically. The vertebral column of the body remains stable due to the isometric co-contraction of the erector spinae, rectus abdominus and the external and internal obliques.... ...
Fox, R. 2001. Invertebrate Anatomy OnLine: Artemia Franciscana. Lander University. http://webs.lander.edu/rsfox/invertebrates/artemia.html, retrieved February 13, 2011.
Outline the physical similarities between the (Blaptica dubia) cockroach and the cricket. Explain previous studies on physical stress in the cricket and in different species of cockroaches. Briefly discuss how the metabolic rate between the two species has been found to be very similar.
Today, the wing is among the most essential aspects of a bird. Therefore, understanding the morphology of how these wings evolved into flight plays a critical role
The large ground finches have a higher curve while the medium ground finches have a smaller head and a tiny beak. The place in which the finches live is what changes their appearances and also the weather helps decide the appearance of these finches.
Alexander, David. Nature's Flyers: Birds, Insects, and the Biomechanics of Flight. Baltimore: Johns Hopkins UP, 2004. Print.
It is possible for the structure of the dragonfly and its thin material-like dragonfly win...
Atelerix albiventris, also commonly known as the four-toed hedgehog, is a fascinating organism with a plethora of intriguing characteristics. The hierarchical classification of this organism is as follows: Kingdom Animalia, phylum Chordata, class Mammalia, order Insectivora, family Erinaceidae, genus Atelerix, and species albiventris. In the genus Atelerix, there are four other species. The members of this genus include the four-toed hedgehog (Atelerix albiventris), the Somali Hedgehog (Atelerix sclateri), the Southern African Hedgehog (Atelerix frontalis), and the North African hedgehog (Atelerix algirus) (Santana 2010).The two distinctive features of the class Mammalia are the presence of hair and mammary glands. The function of hair is to serve as an insulator while the mammary glands enable females to produce nutritious, calorie-rich milk and nurse their young. Members of the order Insectivora are insect-eating mammals that have a long snout and either covered in fur or spines. Insectivores are seen as primitive mammals because they lack certain advanced characteristics seen in complex mammals, such as the primates. Instead of a ridged brain they have a smooth brain and instead of two separate openings for the genitals and anus, they have a cloaca, which serves as the opening for both the urinary and reproductive tracts. Furthermore, three commonly known mammals in this order Insectivora are the hedgehog, mole, and the. The genus Atelerix contains the African hedgehogs, which are distinguishable spines covering their bodies, a white fur belly, and typically are between six to eight inches in length (Vaughan 1972)
Campbell, N. A. & J. B. Reece, 8th eds. (2008). Biology. San Francisco: Pearson Benjamin Cummings.
Most of the species from habitat one are Diptera. There was a total of thirteen Diptera’s in habitat one. Cup one had the least amount of individual species with four. Habitat two had more individual species than habitat one. There was a total of seventy-nine species from habitat two. Like in habitat one most of of the arthropods from habitat two were Diptera. The was a total of eighteen Diptera’s in habitat two. Cup six had most of the Diptera’s with thirteen. Orthoptera was second in the number of individuals with sixteen. Orthoporea’s are crickets and
Neck and beak – *The neck is long and felixble as a result bird is able to rotate its head for reaching food and can see all around. *The jaws are teethless and are produced into beak which are variously modified to pick up food, making nests and preening etc. Skin – *The skin of bird is loose which allows movement of the flight muscles. Limbs –*Forelimbs are modified into wings and are attached closer to center of gravity and farther from head than in other animals. *The wings act as propelling organs for flight. *Hand bones are small, fused, flattened and specialized to manipulate the flight