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Lab report on isopods
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Title: Pillbugs response to danger.
Introduction: In this lab we are testing if pillbugs will ball up the more they are in danger.
Background Information: Pillbugs are terrestrial Isopods which belong to the Class Crustacea. Appearance: flattened or rounded back, seven pairs of legs, sharp – angled antennae. Pillbugs have a set of overlapping gills on their underside. There are 12 different species of pillbugs found in the northern and central United States. However, there are nearly 4000 described species of pillbugs. They are fund in humid areas, compost piles, and leaf litter. They feed on dead vegetation such as wood and leaf litter. They cannot survive below -6.0 C, so they burrow 60 cm below the ground surface to reach safe temperatures. They reproduce during the months of May through September. If the pillbugs are irritated they will frequently exude a thick glue which serves to entangle predators, such as ground beetles, centipedes, and spiders.
Problem Statement: What happens if pillbugs are disturbed and in danger?
Hypothesis: If pillbugs ball up when disturbed, then the more often they are disturbed the more they will ball up.
Materials:
Forceps
10 pillbugs total
2 petri dishes
Timer
Investigation Plan:
1. Obtain 10 pillbugs.
2. Put 5 pillbugs in the first
…show more content…
Then they would gradually slow down until reaching a complete stop. They constantly clumped together and tried to climb out of the petri dishes. Periodically, the pillbugs would fall on their backs and struggle to get back on their legs. Some of the pillbugs were small and some were big.
Data Analysis:
Time
(mins) 1st petri dish observation Time
(mins) 2nd petri dish observation
0 3 balled up
Piling on top of each other 0 1 balled up
Pooping
5 2 balled up
Some clear liquid 10 2 balled up
Fighting with each other
10 4 balled up 20 2 balled up
15 5 balled up
Lots of clear liquid produced
20 3 balled
5. You will be using this tutorial to help you find references for the experiment and laboratory report you will be working on during lab on pill/sow bugs (see Lab 2 Activity Two in the lab manual). List 4 specific keywords you will use when searching for literature relevant to your pill bug experiment. You should not list “Boolean” operators as keywords. Note that you often will find relevant and very useful literature with related species (not just pill/sow bugs!) (2
Forensic entomology is most commonly used in suspicious criminal cases. P.C. White (2010) suggests that insects are responsive to certain stimuli and from this we are able to capture an insight into an insects contribution to crime solving. We can determine many different aspects of a case by the presence of different insects colonising a dead body, blowflies for example, are the first to approach the body when its fresh. This is due to their preference of food sources. Ultimately, I will explicitly focus on the relevance of a blowfly at a crime scene.
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The adults overwinter in leaf litter and thatch until spring time when the temperature warm up. The adults become active seeking new areas to lay eggs and can be seen walking across pavement. The females lay white, kidney shaped eggs with in grass stems that are hollowed out. It takes about 7-14 days for the white larvae to hatch from the eggs and proceed to live and feed within the grass stem until its third-instar. During the second instars cycle, the larvae eat their way through the grass stem, breaking themselves out. The larvae go on to complete their third instar cycle in the thatch feeding roots and crowns. The larval stage takes about 5 to 8 weeks to complete before pupation occurs in the soil. The pupae are about 1 to 2 inches long and emerge as adults in about 7-10 days. They continue feeding on grass until they find their new overwintering site before temperatures begin to drop
The use of planes for the spraying of insecticides has increased. The gypsy moth came in to the United States unplanned and the first thing that was done was that they tried to spray insecticides. The result was that more moths came back after the spraying. The alternate used to kill off the moths was to bring in parasites and it worked. Another incident in Long Island occurred with the same type of moths and they sprayed the insecticides that killed livestock and affected bodies of water. People became outraged since companies kept using these chemicals to try and get rid of the moths. Many animals were harmed throughout the entire process.
Jane goes to work everyday at an animal-testing lab. She pours liquids used in eyeliner into the eyes of numerous albino rabbits. The rabbits' eyes are held open with clips so that for the 72 hour test period, the rabbits can't even blink. The rabbits' bodies are in a box so that only their head protrudes. Jane watches the rabbits and records how the rabbits’ eyes react. She observes as the rabbits’ eyes bleed intensely. Some eyes become extremely deteriorated, and some rabbits even become blind due to the toxicity of the liquid being tested. As she walks down the line writing down what each rabbit's reaction is, Jane notices many rabbits have broken their own necks trying to escape the horrendous pain ("Product...").
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The class insect has the same body structures and functions. They have a segmented body divided into three parts, head, abdomen and thorax. They also have an antenna, segmented legs, and wings. The functions of the body parts, however differ from the different orders of insects. For instance the mouth parts for an adult ladybird beetle is chewing, but on a Hemiptera the mouth form is a beak called the stylets as is the case with an aphid. Palps are on the ends of beetle’s mouth and are used for picking up and holding food while eating. The only visible top part of the thorax on a ladybird beetle is the pronotum, while on other insect such as Hemipteras the pronotum is a triangular shape and is then called the scutellum. Typical beetles have two sets of wings, the front set called elytra, which
And in the article it said that a lot of bugs are poisoned so you better git the not poison one. Every one thinks that they are little monster but I think that they are cool because they can scare other people like when you catch them
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Fleas are very small insects. They are all flightless and do not have eyes, although two ocelli may be present. Their antennaes are short and their mouthparts are adapted for piercing and sucking. The female flea lays a few eggs daily that total up to 300 to 400 in its lifetime. The eggs are laid usually on animals and most drop off where they spend most of their time. Bedding, floor crevices, carpeting, along baseboards and areas near their favorite sleeping and napping sites are especially likely places where eggs will be found. These eggs hatch into larvae, which are baby fleas. The larvae spin a cocoon and, depending on environmental conditions, emerge as adults in as few as five days. The adult fleas then mate after a blood meal and then lay eggs. The life cycle is then repeated--until control measures break the cycle. The total life cycle can last from 25 days to several months. The bodies of both adults and young fleas have many backward pointing hairs and powerful leg muscles. Fleas can jump 80 times their own height and 150 times their body length. Fleas have many mites and parasites and can have up to 150 living in them at one time.
The life of a ladybug begins with the female laying 10-50 internally fertilized eggs in masses which then hatch into six (6) legged larvae. Just a few weeks after the egg hatches into larvae, they will feed on aphids and mites on the carefully placed leaf by their mother. Much like butterflies, the ladybug also goes through a pupa stage. After a few weeks of eating and molting, they begin the metamorphis state. In just a few short days, the sack will split open and a full-grown ladybug will emer...