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Anthro p1

Submitted by ameserole on Tue, 04/24/2018 - 13:05

Anthropologists refer to their projects as globalization from below because they focus on the local people in an area. They look at how large corporations and technology affects these people on a personal scale, instead of looking at it from the perspective of a whole population. This research is important as it lets us see how certain things affect each person, such as people of different occupations and different social statuses, rather than ignoring these differences and making blanket statements on how a population is affected.

week 14 Draft 3 "Humanities"

Submitted by jngomez on Tue, 04/24/2018 - 12:59

There was even a high demand in 2004 for humanities in foreign relations when an issued was made calling for National Foreign Language Capabilities. This is due to the fact to wanting to understand how other cultures work and understanding their ways of thinking. Acknowledging humanities as a key aspect in the government helps us understand our nation as well and what we value and support. Humanities capture the essence of a society as stated meaning the suffering, passion, and worries people hold.  Another reason humanities holds a key value is in awareness of surroundings during meetings, conferences, and group projects. I feel a key characteristic to hold is understanding others which is a key idea in humanities since during meetings, conferences, or group projects we must respect others even if we don’t agree with their ideas. Then we must know why they think a particular way. Circling around to the idea of being open-minded.

 

Plant Draft 2

Submitted by lgorman on Tue, 04/24/2018 - 11:49

In conclusion, they discovered that mechanisms rice plants use to grow adventitious roots mostly involve light signals to stimulate growth, while gravity was a small factor. They found the root growth had a dosage dependent relationship with all colors of light, with red light having the most efficient effect. These plants use light as the most important signal because when there is less light, the plant is probably submerged and it needs to obtain more oxygen. Using this discovery, they proposed that plants monitor oxygen availability by sensing light.

Plant Draft 1

Submitted by lgorman on Tue, 04/24/2018 - 11:48

The effects of different colored light was also a topic that they researched. To begin, they tested the root growth on stems when exposed to red light and far red light. In darkness, the stems had root penetration of 84.8%. When the stem was exposed to a high fluence rate of far-red light, the root penetration decreased to 19.1%. This was found to be a gradual decline; as the fluence rate of thel light increased, the root penetration decreased. Red light had a similar effect, causing root penetration to decrease to 18.4%. However, red light was discovered to have a stronger effect on root penetration than far-red light.  In addition to red light, they tested the effects of blue light on the plants.

Nucella Lamellosa Lab Methods

Submitted by mkomtangi on Tue, 04/24/2018 - 10:56

For this experiment, I decided to compare the thickness of the shell of the surviving snails in a population that had crabs present and a population that did not have crabs present. I did my experiment on the West side. My Independent Variable was the presence or absence of crabs, the dependent variable was the average thickness of the shell of the snails. The control of this experiment is a tank with no crabs just snails. In this experiment, I did not cull the baby snails. This means that the snails in my experiment can reproduce and I will have baby snails in my experiment.

   

There were eight tanks in my experiment. I held constant the number of snails and the thickness of snails consistent between the control and treatment tanks. Each tank had 15 snails; 5 of these snails had very thin shells(1-4 mm), 5 had thin shells (4-7 mm) and the last 5 had thick shells (7-10 mm). Four of the eight tanks were my treatment group, they were two crabs in each of the four tanks. The other four were my control group so they did not receive treatment which means there were no crabs in these tanks. I had four tanks in each group because I wanted to have replicates of my experiments.I recorded my data which is the mean of the thickness in each tank, the number of crabs and the snails that survived in each tank. After that, I run the experiment for 120 days. After every 30 days, I recorded the data again till the 120 days had past. I ran the experiment for 120 days to allow the snails to reproduce.

 

reproduction and social behaviors of P. hydrobothynus

Submitted by brettconnoll on Mon, 04/23/2018 - 21:42

The stellar river otter is an incredibly territorial and aggressive animal. The males will monitor their territory daily while foraging for frogs, and fights between neighboring, and young males happen frequently. When a young male is able to defeat a dominant male who is in charge of a pride he is able to take over the male’s pride. Many young males go around challenging other males but due to their lack of experience and size, they are very easily beaten. The male stellar river otter maybe six to eight years old before he is able to finally get a female of his own, but then he must spend the rest of his days defending his territory from rival males. The stellar river otter may live to be 20 years old and will spend its time defending its territory to the very end.

reproduction and social behaviors of P. hydrobothynus

Submitted by brettconnoll on Mon, 04/23/2018 - 21:42

P. hydrobothynus lives in large social groups of three to twelve members. A group of otters is called a pride when they are on land, and a raft when they are in the water. There are never more than two males per pride of stellar river otters, and these males are always related. A male may have a number of females ranging from one to six. In a pride of otters, there is a dominant male who rules over the entire pride. If the second male is lucky he may have the opportunity to have a female of his own however this usually is not the case. Female stellar river otters may have one to three pups a year. The male will only have one pregnant female at a time and the entire group works together to raise the pups. This prevents overcrowding in the burrows and it gives the pups more attention and resources due to a group effort to raise them. Pups stay with the pride until they are two years old. Young males are kicked out of the pride by their father, and young females will either leave on their own or be taken by another prides male. 

Yeast

Submitted by mglater on Mon, 04/23/2018 - 21:36

The YED plate and the MV+Adenine plate do not provide information directly about whether the mutation in the yeast is Ade1 or Ade2, rather, they act as different forms of a control. The YED plate contains all the nutrients needed by the yeast to grow, but has a suboptimal amount of adenine. Because of this, the yeast cells attempt to synthesize adenine, and the mutants that build up AIR turn red. On the other hand, the colonies of yeast which are wild type or which complement each other are able to produce adenine with no buildup, and remain white (Figure 4). The appearance of red cells on this plate is a confirmation that some of the mating crosses did not have complementary genes.

AB Intro Part 2

Submitted by malberigi on Mon, 04/23/2018 - 20:42

Swaths of the Amazon rainforest have fallen victim to slash-and-burn agriculture where felled forest land is used to grow subsistence crops.  When these farm plots are abandoned, the land will eventually return to forest but the regrowth process can take 200 years (Wilson, 1988). The agricultural practices of cutting, burning, and weeding largely eliminate mechanisms of on site regeneration making it more difficult to regrow woody pioneer species (Pedlowski, 1997).  Seed dispersal has been suggested as a mechanism of facilitating forest regeneration. However, the dependence on seed dispersal slows succession because many of the animal species that routinely disperse seeds, such as avian frugivores, do not frequent large forest openings. This tendency to forage away from large openings is due to both a lack of food sources, and a lack of cover from potential predators (Wilson, 1988).  In order to attract seed-dispersing birds, we propose to identify and plant indigenous fruit bearing plant species to facilitate visitations to clearings caused by slash-and-burn agriculture.

 

AB Intro Part 1

Submitted by malberigi on Mon, 04/23/2018 - 20:42

Food color preference of avian foragers has not been widely studied.  Globally, the most common fruit color of bird-dispersed plants are red and black.  Other preferential fruit colors include blue and purple, while orange and green are rarely chosen (Janson 1983).  Fruit colors are commonly considered to increase the conspicuousness of ripe fruit in order to attract birds to disperse the enclosed seeds.  The preference of fruit color in avian foragers may be due to a variety of factors. The factors hypothesized to affect food color choice include background color, the prevalence of one color, and nutritional value associated with certain colors (Willson, 1990).  In our study, we would examine food color preferences of three parrot species living in areas of the Amazon rainforest that are in need of ecological restoration.

 

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