Isopods can hermaphroditic which is being both girl and guy, meaning they do not need a mate to produce offspring. Isopods can be born a male then change to a female later on in life. Isopods eat fungi and decaying plant matter. Experimental Design: Testable Question: How will the isopods react to different lighting conditions? Independent Variable: Lighting condition Dependent Variable: How the isopods will react Test: Materials: Scotch Blue Tape 8 ounce water
This behavior was observed in all the three experiments and through the period of observation, isopods seemed to move to different sponges before they settled down behind one of them. The χ2 value was 0.03842932, df was 3 and hence the P value was less than 0.001 which proves that this result is not a result of random probability and is in fact significant and reliable. In Trial 2, the hypothesis was that most isopods would go to the sponge with sucrose solution and our hypothesis was proved correct through the experiment. It was observed that a majority (55%) of the isopods preferred sucrose relative to the other sources of moisture. The χ2 value was 0.012858, df was 3 and hence the P value was less than 0.001 which proves that this result is not a result of random probability and is in fact reliable.
For this experiment we used syrup and water as our independent variables. This was decided because in our prior experimentation it was discovered that the Isopods prefer the environment with water over the dry environment. This experiment was the epitome of taxis, in which the Isopods moved directly towards the environment with water. We then became eager to see if that was applicable to any wet environment or if the specific substance caused the preference to
Some octopuses also use ink to confuse a prey (especially big ones, like lobsters) before attacking it from behind. Changing color/shape: Many cephalopods are able to change their color and shape. Through controlling single pigment cells, cephalopods are capable of making different patterns and colors. For example, ready-to mate squids express their readiness through expressing certain colors. The change of color and shape are also used to camouflage animals when hiding from enemies or ambushing prey.
Note: Petri dishes are always kept with the “gel side (agar)” up. 2. Using a permanent marker, on the top (gel side), divide the petri dish into quarters and label each quarter A, B,C, D, 3. Make a label and put on the bottom of the petri dish: • Name • Date 4. With your partner, decide what four cultures you would like to study (i.e., cell phone, table top, door handle, etc) 5.
BIOLOGY RESEARCH TASK 2016 An investigation to determine the way in which the environment affects the Scopus Umbretta’s(hamerkop) living and feeding methods, as well as the area in which it builds its nest. By Kylie Webb Grade: 12F Importance: The importance of this study is to be able to understand where and why the Scopus Umbretta builds its nest in a certain area. It is also to find out how the environment and surroundings of this bird affects where and why it builds its nest in this area, as their nest often get taken over by other birds in the area. This study will also look briefly into what the Scopus Umbretta feeds on because this is a factor that can also influence the area in which it may choose to build its nest.
Arthropods are found in a greater variety of habitats than any other animal group; on mountains, deep in oceans and in extreme temperatures. Common examples of Arthropods consist of Crustaceans, Arachnids, Myriapods and Insects which are all characterised
In an effort of identifying a new species for aquaculture hatcheries, several experiments have been conducted comparing the rotifers, Artemia and copepods as live feed for marine fish larvae (Shield et al., 1999 and Olivotto, 2009). Copepods have shown to enhance larval survival, growth and the percentage of normally pigmented individuals of marine fish larvae (Shield et al., 1999; Gopakumar and Santhosi, 2009 and Olivotto, 2009). The biological characteristics of copepod makes copepods nauplii an ideal principal live prey for marine fish larvae in larviculture (Gopakumar and Santhosi, 2009). Copepods therefore have been identified as potential candidate to be used in larviculture as alternative source of
In these environments, the arthropods play important roles (mainly in and above ground) as decomposers, herbivores, granivores and predators, controlling the nutrient cycling and the energy flow through the different levels in the food chain (Crawford 1986; Polis 1991; Greenslade 1992; Ayal et al. 2007). Considering their role in natural systems, they are important model taxa for comparing communities dependent on habitat (Lassau et al. 2005), and can be used to monitor changes in the environment because of their high abundance, species richness and habitat fidelity (Andersen & Majer 2004), which, together with their diverse characteristics and ecological requirements (Wettstein & Schmid 1999) make them useful indicators of environmental