The results showed that the increasing of the density leads to a decrease in the biomass of plants and that the experimental groups are not much different than the control groups. This shows that an environment can work to stabilize itself without human interruptions. Plants can ensure they don’t overpopulate an area by self-thinning and species can survive with predators using the environment they were given. Introduction Competition for resources is seen in all species and environments around the world. Since the Earth’s natural resources are limited, it necessary for species of all kingdoms to fight in order to gain enough nutrients in order to not only live but thrive and go on to produce future generations.
When looking at the three most abundant species found in both locations, there are significantly fewer Polychaete Larvae and Unidentified Copepod found at Fort Wetherill. Acartia was higher in abundance at Fort Wetherill, but remained dominant in both locations. Fort Wetherill is at the mouth of the estuary and is a nutrient exporter. It should have been expected that there would be less species surviving. Estuaries transport dissolved nutrients to coastal zones leading to a high productivity in primary and secondary production.
The depth of the seed will affect the way and how fast the sunflower seed grows. A planting depth of 2.5cm-9cm allows sunflower seeds to reach available moisture and gives satisfactory stands. The sunflower is not considered to be highly drought tolerant, but it is an inefficient user of water. The purpose of this experiment is to test if plants will not grow as efficiently as it would if there was sunlight and see if there are low levels of sunlight. Methods/Materials During the experiment one of the plants was not watered one day out of the week, which should result in no change in the growing efficiency of the sunflower seed.
In the 1900’s, Drosophila melanogaster, commonly known as the fruit fly’s became a choice model organism for genetic research. Fruit flies were a choice model because they are small, easy to raise, have short life cycles, and females give rise to hundreds of fertilized eggs. Thomas Morgan studied Drosophila melanogaster during the 1900’s and discovered sex linkage and genetic recombination
Because speciation happens at a slow rate in relation to human involvement it is very difficult for scientists to complete research. Natural selection plays a very important role in evolution of species through time. The species with the most desirable traits at that point in time are the ones that will go on the reproduce the most offspring. This has an effect on ecology because as species change as a result of the environment there will also be an additional change as a result of the species. Robinson’s study is slightly different than most because it shows how natural selection works within a single population as the two specimens change as a result of their specific environment and food
They thus contain only half of the genetic material common to the animal's cells and have not yet undergone any development. 3. Removal of Egg's Nucleus As the genetic material that is present in the egg cells is not what scientists want the cloned animal to have, and as having multiple nuclei in the same cell can cause many problems for the cloning process, scientists must extract the egg cell's nucleus. They do this through a method similar to the method used to isolate the donor cell's nucleus, only they discard the egg's
Due to difficulties and huge investment associated with the development of biosimilars, only few companies will enter into the biosimilar market. The less competition will not reduce drug price. Thus, the biological drug price would not be reduced as expected. In conclusion, the price difference between innovator biologic drugs and biosimilar drugs will be far narrower than the price between brand-name chemical drugs and their generic counterparts. Therefore, the benefits of biosimilars to all its stakeholders seem modest due to several issues associated with the biosimilars such as the complexity of biological molecules, challenging manufacturing process, expensive clinical studies and the barriers to market
This was demonstrated in the lab when the majority of the organisms possessed spoon mouths and were therefore unable to access the majority of the resources causing a massive decrease in the number of organisms resulting in an equilibrium of how many organisms could exist with the possible resources at hand. This leads us to the first inference: when the population goes over the envierments carrying capacity the organisms find it difficult to exist and this was obviously displayed among our data indicated by the reaching of an equilibrium. Fact number 3: some traits among organisms are indeed heritable to the offspring and the subsequent generation. As long as there were plenty of resources the mouth trait of spoon continued to persist among organisms this was indeed a heritable trait that continues to be passed along because it enabled all who possessed it to be successful in there given situations. Fact number 4: variability is crucial to the survival of a population.
23.5 million people in America live in a food desert. A food desert is a geographic area where affordable and nutritious food is difficult to obtain, usually in rural areas and low-income communities. Not being able to have easy access to grocery stores changes multiple things. Most of the time you have to buy multiple of one item to prevent running out. This causes a problem because fruits and vegetables do not stay ripe forever.
Low oxygen levels increase stress on fish. It has been found that this can cause fish to have smaller ovaries, produce fewer eggs, larva is smaller and less likely to survive (Oceans Where Fish Choke. 2010).” This mutation will have a negative effect on the population of fish causing decline or birth defects. Declination will eventually take toll on the geographic areas dependent on fishing for a source of income and food. Biological Oceanographers are not alone investigating the issues; Chemical Oceanographers have significant roles in the equation also.