Biology Investigation: The Crustacean Porcellio Scaber

Pill bugs, Armadillidium vulgare, are terrestrial isopods [Gibbs, Smigel, 2008]. Thus, they are not very well adapted to land [Gibbs, Smigel, 2008]. Water loss is a reoccurring theme because terrestrial isopods lack “cuticular lipids and the elaborate spiracular apparatus of insects” [Gibbs, Smigel, 2008]. Most of the water loss is evaporation from the respiratory organs [Gibbs, Smigel, 2008]. The respiratory organs are called pleopods, and are gill-like organs “located on the ventral abdominal segments” [Gibbs, Smigel, 2008]. Interestingly, pill bugs are capable of conglobation, the ability to roll up in a ball [Gibbs, Smigel, 2008]. In addition to protection from predation, conglobation may also conserve water [Gibbs, Smigel, 2008].

To make the results of the experiment valid four variables to take into account are if the freezer is the same temperature for both tests, the water is the same water just different temperatures, the ice cube trays are the same size, and finally both trays are in the freezer for the same amount of time.

2. Determine the room’s air temperature, and also measure the diameter of the glass tube. Record the data.

Woodlice are nocturnal and are classified as primary decomposers, feeding on organic materials such as bark, leaves, dead plant and animal matter and hardwood, decomposing the debris into soil which is vital for the ecosystem (Nardi 2009, Poole 1994 & CapineraI 2010). Woodlice can also be classified as secondary decomposers as they feed on their own faeces to replenish the copper containing oxygen –absorbing pigment lost when they defecate. Urine is also recycled in the water conducting channels along with water that is taken up from the environment, the ammonia of the urine evaporates and from the remaining water in the water conducting channels oxygen is absorbed by pleopods (Nardi 2009).

2.For 2 disks, it will take 3 moves: 2n + 1 = 21 + 1 = 3

Use the same Elodea to conduct the other 4 trials for that same temperature, repeat steps 1-5 for each trial.

First, obtain a SpectroVis Plus device and connect with its corresponding LabQuest2 device. You need to calibrate by turning on the machine, allow the inner lamp to start heating up, and prepping a blank in the process. Obtain a dry cuvette, fill it with distilled water, and place into the SpectroVis plus device. Before doing so, be sure to wipe the outside of the cuvette with a Kimwipe to clean off any fingerprints that might be present. Fingerprints will skew with the calibration. Once the device notifies you that calibration is complete, click okay and prep for the next part of the lab.

Wood field club is situated in Florida, Boca Raton. It is one type of resort cum club. Wood field’s resort style club has a magnificent grounds and it is located in central location in the community, which gives easy access for everyone.

Finally, place the 96 well plates in a CO2 incubator (37ºC) for 24 hours and read on a florescent

The leveling bulb must be leveled with the amount of water in the buret at all times. Timing should begin after 2 ml of oxygen has been produced and must be recorded at 2 ml intervals until 14 ml of oxygen has accumulated. After recording the time, the first part of the experiment is now complete.

Process: It took many different methods and ways to find the method to actually get the answer. The first method I tried was a bad method but helped to find out the right method. First I tried to count them all up one by one then tally them on a piece of paper but this method didn’t work because I missed a lot of squares and it took way too long. The next method I tried had the exact same problems as the first but gave me the method that worked. I tried to count how many were in each row then add all of it together but once again it didn’t

4.Measure 35mL of warm water and add them into each of the 4 test tubes at about roughly the same time. It is essential that the water is warm. Do not seal the test tube.

Get worms and put 1 in each of the test tubes in the different temperatures of water.

Remove foam plug from the inoculate flask and pour it into a cuvette. Incubate it at 37°C and the optical density readings at 600nm every 10-15 mins. Pour into the

L. Scobina also known as the Oyster Borer are active predators in the Rocky Shore carnivores. They were found in the mid and low tide zones of Sirens Rock, on rocks and in crevices which provides them with protection from predators. They were most abundant in the mid tide zone of the rocky shore but mostly dense in the low tide zone as they like to prey on C. columna . The size of an individual L. Scobina is linked to the distribution because the larger individuals (older) have increased ability to withstand desiccation. We were able to identify L. Scobina because of its structural adaptations. They are a small whelk with a grooved and ribbed spotted shell, which specialises in drilling holes in oyster shells. They also have a hard operculum