The purpose of this experiment was to see to what extent the amount of light exposed to the caterpillars affect its survival rate. My hypothesis is if more light is exposed to the caterpillars will result in less chance of survival because caterpillars are naturally nocturnal and with constant synthetic light it will be least like their natural living conditions.
According to the chart above the butterflies in the six hours of light had a 100% survival rate demonstrating that my hypothesis was to an extent accepted.The caterpillars with the highest survival rate were exposed to 6 hours of light and 18 hours of darkness. To my knowledge caterpillars are most active at night, to find the most food possible with the least amount of predators to worry about. The 6 hours of darkness proved to help the caterpillars adjust the most to the captive living and help them nourish and grow into healthy butterflies while still having the presence of artificial light to represent
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Animals especially caterpillars require a certain amount of heat to survive. The lights we used in the examination gave off substantial heat in the enclosed sections of caterpillars. The 24 hour constant light caused those Painted ladies to have substantially more heat than the ones with very little light, which could have very much possibly caused 80% of them to survive, not the constant light. Another problem in the investigation was the amount of food given to the caterpillars. Even though it was monitored it was not measured out and closely watched. Food is one of the biggest factors in a surviving species. If more caterpillars got fed more frequently than others it demolishes the eligibility of our results, causing the light factor to be unknown due to the shortage or over consumption of food. In the future we should use lights that produce much less heat and regulate food distribution much
..., Department of Zoology, Miami University, Oxford, OH, Available from Journal of Insect Physiology. (46 (2000) 655–661)Retrieved from http://www.units.muohio.edu/cryolab/publications/documents/IrwinLee00.pdf
To conduct the experiment, the beetles were massed, then attached to a petri dish with a 30 centimeter piece of dental floss. The beetle’s mass was the independent variable. Afterwards, the floss was tied to the beetle’s midsection with a slip knot. Then, the beetle was placed on a piece of fabric with the petri dish attached to it. As soon as the beetle was able to move with one paperclip inside the petri dish, more were added, one by one, until it could not move any further. After the beetle could not pull any more, the paperclips were massed and the results were recorded. The dependent variable was the mass that the beetles could pull. No control group was included in this experiment.
The life cycle of a monarch revolves around the Butterfly weed plant. First the monarch lays its egg on the leaf of the plant. Once the Caterpillar is born it eats the leaf for nutrition. The Monarch caterpillar is striped black and yellow. As it grows and becomes ready to become a chrysalis by forming a cocoon it uses the plant again. The caterpillar forms its cocoon on the Butterfly Weed. By the time the caterpillar is ready to become a chrysalis it has grown to be about 45 millimeters in length. The chrysalis is pale green and spotted with gold. It becomes more transparent as the butterfly gets ready to break free. The adult Monarch has a wingspan of about 4 inches. The m...
The Daphnia magna species in this experiment were kept and preserved in jars of suitable water that acted as small ponds. Each Daphnia Magna was transported individually using a wide-mouthed pipette to a depression slide. The stability of the Daphnia Magna on the slide was attained by using a drop of pond water that acted as a boundary of movement for the Daphnia on the depression slide, small pieces of cotton wool were also used to act as an extra boundary to stop the Daphnia Magna from swimming in circles in the pond drop it was placed in; the stability factor was important in counting the heart beat rate more accurately. The depression slide was then placed under the stereomicroscope, over a cooling chamber that was used to slow down the
Planaria usually live in water, water doesn’t have any effect on them which the reason why it is used as a control group in this experiment. Planarian will be put near the edge in a two-chamber tray containing water, in the side that is not covered with a dark piece of paper. Five planaria will be tested in a 2- chamber tray. We will measure how long it takes the planaria to move from the edge of a chamber receiving light, to the dark chamber. Subsequently, start by adding the lower concentration of caffeine in the water, replacing planarian in the same position and measuring how long it takes now to go back to the dark chamber in the presence of caffeine. We will duplicate the same procedure with higher concentrations of caffeine and additionally take the average of the time all five planaria took to move from the edge of the chamber in brightness, to the dark chamber in different concentrations of
Monitoring Icaricia icarioides missionensis is one way the Golden Gate Recreational Area is attempting to alleviate some of the devastation caused by residential and industrial development in the San Francisco Bay Area. Scientists are attempting to detect trends in the number, and distribution of Mission Blues. This monitoring will help to understand how these trends are affected by different conditions within the region. It will also help us to determine which areas need more protection than others. Milagra Ridge and the Marin Headlands in California are two regions in which the monitoring consists of counting adult butterflies seen in the surrounding grasslands. An alternate form of this monitoring includes tracking Icaricia icarioides missionensis larvae and caterpillars. This overall tracking of the...
To continue the experiment further I can use a different source of light to test the intensity of light. For the food coloring experiment, I could use a different food color such as yellow or orange to test.
The short story “The Moths,” written by Helena Maria Viramontes, tells a story between a granddaughter and a grandmother who both share a symbolic connection between each other. The story is in a first person narrative, told by the author, and her experience taking care of her ill grandmother while facing gender and religious oppression in her own home. The author is very distant from her own family mainly because she does not meet the expectations that her parents have embedded for her. There is a motif of rebirth throughout the story told by the author by symbolizing the significance of the gray moths. The vivid imagery of moths in Helena Maria Viramontes’ short story “The Moths” symbolizes the connection between life and death.
The life cycle starts as larva or caterpillar. First, the monarch lays the eggs on the milkweed plants. Next, the egg hatch into a caterpillar. The caterpillar then eats the milkweed plants until they are large enough to pupate (Emmel, 1999). Then, the caterpillar attaches a pad of silk to a stem of a milkweed plant so it can hang while it transform into a butterfly. Next, the caterpillar sheds it larval skin to reveal the chrysalis inside (Emmel, 1999). After it shed its skin, the pupa hardens and the chrysalis earns it name by glowing in the sun. As the pupa stage comes to an end, the butterfly can be seen through its pupa shell. The monarch emerges by splitting the pupa along the length of it proboscis (Emmel, 1999). First the legs emerge. Then the fluid fill body pumps its fluid into the veins of the wings while the body shrinks to normal size. Finally, the butterfly hangs from the pupa about two hours while the wings dry (Emmel, 1999).
We are testing the metabolic rate of a cricket and (Blaptica dubia) cockroach under physical stress, cold, heat, and lethal heat.
Flowers can’t grow in the dark. It's just that simple. In the story “Popular Mechanics,” by Raymond Carver,it’s mentioned that there is a flower pot over by the stove but, it is also mentioned that there is no light coming through the windows. How does the flower grow with no light to nourish it? The question shouldn’t be how does it grow with no light but when did the absence of light begin because no one would try to grow a flower in a place where there was no light to begin with. Although the flower pot is a strong symbol for the couple’s crumbling relationship, the progression of darkness is a stronger symbol of the couple’s sinister actions that will end in the baby’s hopeless fate.
This short story by Helena Maria Viramontes, she is portraying symbolism in the moths, the sun, and the growth the granddaughter went through into releasing her resentment. Towards the end of the story, the moths came out through Abuelita’s mouth, while being in the bath tub, fluttering into the light. This represented rebirth and liberation in the Abuelita’s soul because in the story, the granddaughter states that Abuelita would tell her about the moths within the soul and slowly eating the spirit up. Therefore, by the moths within her soul escaping and fluttering to the light, it represented more than just Abuelita dying. The moths represented her soul finally at peace. In addition, the moths were also a healing remedy because how she would use the moth wings, during the beginning of the story, to her granddaughter’s hand to shape them and making her feel more confident about her “bull hands.” Abuelita’s soul was portrayed as moths in the sense of freedom, spirituality, and being able to let go of her cancerous body.
Hungry For Success They called me “a very hungry caterpillar.” I constantly wanted more. More dessert, more toys, more accessories...
The purpose of this lab was to study the response of the genus Daphnia to chemical stimuli and to examine human responses to different stimuli. A stimulus is an incentive; it is the cause of a physical response. Stimuli can have a physical or chemical change; an example of a physical change is a change in temperature and sound. An example of chemical change would be changes in hormone levels and pH levels. Muscular activity or glandular secretions are responses that occurs when stimulus information effects the nervous and/or hormone system. Daphnia is a genus; it is a small crustacean that lives in fresh water. The body of the daphnia is visible and its internal organs are clearly seen thus it was chosen for this exercise. The
The reason light intensity is being used compared to whether or not a plant needs light. It is because The experiment wants to show that the rates of photosynthesis will vary according to how much light from a light bulb will be trapped in. the chloroplasts, in the leaf. The more energy trapped the more efficient a chemical reaction can take place and the speed of photosynthesis will increase. There are many things which can affect the photosynthesis of a plant such as light intensity, temperature and carbon dioxide levels.