Effects Of Silencing The Srw 10 And Dyp 7 Genes

The purpose of our experiment is to test animal behavior and reactions to a change in environment. Our guiding question is, “Why do living organisms respond to environmental factors?” This is basically a question that is asking why living things will react a certain way to environmental changes. The task to answer this question is to experiment with changing environmental factors with pill bugs.

An experiment was conducted to study and explore the circulatory system by exposing Lumbriculus variegatus, black worms, to household drugs. Lumbriculus variegatus was chosen as the experimental organism because of their transparent bodies and their simple physiology.

This experiment was performed to observe the taxis and kinesis of certain organisms. This is important because the organism’s survival and ability to reproduce depends on how they orient to stimuli using senses. We investigated the behavior of pill bugs to determine if they’ll move towards or away from the vinegar through smell. If I place pill bugs in a behavior tray with different chambers, then they’ll move away from the chambers that contains vinegar. A behavior tray with 5 chambers is used and 2 were control while the other 2 has cotton balls with a few drops of vinegar on it. 5 pill bugs are positioned in the center of the chambers and is covered with a transparent cover to observe the organisms for 10 minutes. Results had shown the class

In this experiment, contractions of the earthworm gut are measured in an organ bath with a force transducer. The effect of neurotransmitters and ionic concentrations on contraction strength and rate will be investigated.

The experiment was conducted using six worms, where three were used for one treatment and the other three for a different treatment level. Initially, the worm was transferred to a parafilm slide containing some water and placed under a dissecting microscope. Application sticks were used to place the worm on the mark and an additional light was placed to observe. The focus was on the posterior end of the worm to obtain the basal pulsation rate. A timer was used to record the basal pulsation rate for 15 seconds, then the result was multiplied by 4 to get the number of beats per minute and this was repeated for two more trials. Same methods were used to measure the pulsation rate of two additional worms and the data were recorded.

The C. elegans were washed several times once a week for several weeks. After the final wash for each week, a small amount of C. elegans was pipetted to the middle of each plate (3 experimental plates and 1 control plate). After all the passages for the C. elegans were completed, the three avoidance assay plates were set up. (A small amount of S. marcerens was pipetted on one side of each assay plate while a small

RNA interference, or RNAi, is a biological process in which RNA molecules reduce the gene expression of an organism. This is done typically by causing the destruction of specific mRNA molecules. RNAs are direct products of genes, these small RNAs can bind to other mRNA molecules to either increase or decrease their activity like in the example of preventing an mRNA from producing a protein. There are two types of RNA molecules that are central to RNAi, these molecules are, micro RNA (miRNA) and small interfering RNA (siRNA).

Since AMPK sites in ULK1 are conserved, the group also examined if the two proteins work together in autophagy conservation in C. elegans using reporter assay and histogram plots.

Purpose: The purpose of this experiment is to observe the pill bugs’ behaviors when introduced to a stimuli, a strong scent, and it is important to notice whether the pill bugs perform taxis or kinesis as a result of the stimuli. In addition, the purpose is to learn how to properly design an experiment is.

Every cell transports materials in and out throught something called a membrane. There are many different methods of transport in the cell Saccharomyces cerevisiae (Serrano, 1977) We want to know does adding higher concentrations of azide more effectively block dye transport? We tested the transport of dye in yeast cells with a metabolic inhibitor. When we did this we showed no difference in the absorbance between different azide solutions, and our control. From this we concluded that azide has no effect on the transport through a yeast cell membrane.

9. Observe and record normal behavior of the worms with and without problems. 10. Move the worms from “water control” to “control”. 11.

All living things respond to stimuli, including animals. In our experiment, we tested how roly-polies, or pill bugs, respond to two types of material: wet sand and wet dirt. Pill bugs are isopods, a group of 10,000 species living on land and in fresh water and ocean. They are under the phylum Arthropoda, class Crustacea, containing both crabs and shrimp. Pill bugs generally live in dark, moist environments with the decaying matter they eat.

Slow-moving ocean snails also known as geographic cone snail (Conus geographus) are notified in this article to overdose their prey with toxic cloud containing insulin and nirvana cabal. The geographic cone snails’ toxic rapidly decreases the blood sugar levels to throw their prey in a state of near-consciousness. Once their prey is in a state of near-consciousness, the geographic cone snail catches their prey with what is called a false mouth because it looks like the geographic cone snail is throwing a cape over their prey and drags their prey into their mouth. Helen Safavi- Hemami ,who studies the toxins at the University of Utah in Salt Lake City , have not seen any other animal with this capability with the exception of humans which there

Caenorhabditis elegans, abbreviated C. elegans, is a roundworm that inhabits the soil. It has played a fundamental role in Biological Laboratories since the early 1900’s as it serves as a model organism. C. elegans has the ability to distinguish between harmful pathogenic bacteria and those bacteria that prove to be nutritious through its ability to differentiate chemicals in its environment. Most of the current research on C. elegans has been conducted within laboratory constraints. We are seeking to gain a deeper understanding of the c. elegans worms within their environment. We choose to study the interactions of the C. elegans worms with bacilius subtilis, abbreviated B. subtilis, and bactillus cereus, abbreviated b. cereus for the remainder of this

An investigation into the effects of varying seawater concentrations on two marine invertebrates’ osmoregulatory abilities; Carcinus maenas and Arenicola marina.