Sea floor spreading forms the best evidence for continental drift. Critically discuss this statement. There is lots of evidence to support the theory of continental drift, including Harry Hess’s discovery of sea floor spreading theory. By using sonar, Hess found that oceans were shallower in the middle, allowing him to identify Mid Ocean Ridges. He suggested that at the centre of oceans, molten material would rise from the Earth’s mantle, causing new sea floor to be created, pushing the ocean floor.
Rochelle decided to compare two plants for 50 days, Memphis plant-which will have the vector drive and Birmingham plant-which will use the existing system and prepare a report. The financial analysts believe that the purchase can be justified if the equipment leads to the average increase in production of atleast 10,000 bricks per day. Since we have to check whether the difference between the mean value of the bricks per day at Memphis plant and Birmingham plant is greater than 10000(for purchase to be justified), we will use hypothesis testing for means and compare the sampling distribution of the mean value of bricks produced in a day. This method is the typical method to solve these kind of problems. Data available is Plant Total Bricks produced in 50 days S (standard deviation) x̄ (mean) Memphis 7484500 3402.46 149690 Birmingham 6902350 3364.68 138047 Hypothesis test In a hypothesis test we assume Ho to be true and try to find evidence that shows otherwise.
Fill in the table below based on which ecomorphs you identified each Anole species to represent. Ecomorphs | Ecomorphs | Anole species | Crown Giant | Gundlachi, equestrus | Trunk-Crown | lineatopus | Trunk | Graham, angusticepes | Trunk-Ground | Pulchellus, allisoni | Twig | Valencienni, occultus | Grass-Bush | distichus | Topic 2: Adaptive Radiation and Convergent Evolution 1. Do the differences between the mainland and island Anoles support the theory of ecomorph evolutionary convergence? Yes | 1. Did the phylogenies of the different islands support the theory of one colonization followed by adaptive radiation and convergent evolution?
LABORATORY REPORT Activity: Recruitment and Isotonic and Isometric Contractions Name: Carolyn Chrzastowski Instructor: Professor Waite Date: 07.19.2015 Predictions When the arm goes from resting to flexing, the amplitude and frequency of sEMG spikes will increase During flexion, the amplitude and frequency of sEMG spikes will ___ during extension. be greater than Recruitment of motor units will be greatest when the load is 20 pounds Materials and Methods Comparison of motor unit activation during muscle tone and concentric and eccentric isotonic contractions Dependent Variable amplitude and frequency of sEMG spikes Independent Variable muscle movement Controlled Variables total number of motor units
Using the same electronic balance, the average mass of five copper slugs, in grams, will be determined. Lastly, by using the electronic balance again, the weight of two different unknown weights, in grams, will be determined by the weighing by difference method. Using both the direct weight and weighing by difference techniques, the weight of the copper slug (2.98 g) and the two unknown weights can be fairly accurately determined using the centigram balance. However, since the electronic balance can determine mass out to three decimal places, the electronic balance was more accurate weighing the copper slug (3.022 g) than the centigram balance using the direct weight and weighing by difference methods. Determining the mass of the two unknown weights (unknown weight #1 and #2) was determined using only the centigram balance using the weighing by difference method.
State in a few words, what is an exponential function? What is the natural exponential function? Evaluate 4–1.5 using a calculator. Round your answer to three decimal places. The formula S = C (1 + r)^t models inflation, where C = the value today r = the annual inflation rate S = the inflated value t years from now Use this formula to solve the following problem: If the inflation rate is 3%, how much will a house now worth $510,000 be worth in 5 years?
Explain where the epitope (antigenic determinant) is located. Your answer: On antigens because they are large and have multiple antigenic sites---locations that can bind to antibodies. 3. Describe how a positive result is detected in this serological test. Your answer: If there is a presence of10 or more elementary bodies in a field diameter of 5 milimeters.
Here are some of the questions that could be asked: How far are the islands from the mainland? What types of habitat are available on the islands? How did the scientist determine how many species each island had? c. Is there any way his data could be accounted for using the current theory of island biogeography? Explain your reasoning.
(You may need to scroll down in the Identify Results window to view the Status attribute.) A: Yes Answer Key Exercise 5a Q: How many levels of detail are there in this basemap? A: 20 Q: Compare the resolution and scale values for two different levels. What does this tell you? A: As the scale becomes larger, the resolution value becomes smaller (meaning an increase in resolution).
Contents * Aim * Background information * Methods * Part A: Looking at the abiotic factors and population distribution * Part B- Interaction in the ecosystem and impact of human activity * Conclusion * Bibliography Aim: To analyse and assess the success of mangrove in colonising the shores of Homebush Bay, to measure abiotic factors and biotic interactions in field study 1 Introduction Homebush Bay is a suburb located Sydney’s inner west, home to sporting complexes, arenas and also Homebush Bicentennial Park. This are all situated in the Sydney Olympic Park.The Parramatta River flows through the Homebush Bay and is home to many species of birds and fish. Sydney Olympic Park was in the top 5