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Instructions At least three experiments must be conducted using an appropriate experimental design. Each experiment should be repeated three times under no, low and high infestation conditions, and the average taken for the values (sum of observations/3). Record your data on the data table below and answer the lab questions. This lab exercise/worksheet is valued at a maximum of 40 points. Question 1: What is the European Cork Borer and why would farmers be concerned if any were present in their corn fields?Question 2: Bacillus thuringiensis is a bacterium that produces a crystalline poison that is deadly to certain insects. What is the name of the gene that codes for the protein and how have geneticists used this information to combat infestations caused by this insect?Question 3: Given the information provided on page 8 in the "Greenhouse Handbook", what hypothesis or hypothesis might one consider as a basis for designing this experiment?Question 4: What do you plan on using as your control groups? What experimental variables are you being asked to consider in this experiment? What dependent variable is going to be used?Describe the effects of the ECB infestations you used on the various variety of corn. Were all corn varieties equally effective at controlling the ECB? How do you know? Be specific.Answer the following four questions with as much detail as possible by entering your response in the box below the question.Question 5: BT corn is generally more expensive than the non-BT forms. On the other hand losing an entire crop of corn can also be expensive. Assume there were no ECB infestation in a certain year, would a farmer gain or lose financially by deciding to use BT corn? Explain.Question 6: What are the main criticisms to the use of transgenically modified crops like corn? Do you think these arguments are valid? What information can you find using the internet to support your argument?Question 7: What might happen if ECB became resistant to BT? Can you find any examples in the literature (from the internet) indicating that this constitutes a real threat?Question 8: A farmer planted a field of BT 124 corn and wants to estimate the yield in terms of bushels per acre. He counts 22 ears in 1/1000 of an acre and determines that each ear has about 700 kernels on average. He also knows that a bushel contains about 90,000 kernels on average. What is the farmer's estimate of yield in bushels/acre?
A second force F2 is added to F1 . The resultant of the two vectors has a magnitude of 370 newtons and points along the (a) east/ (b) west line. Find the magnitude and direction of F2.
Pendulum A is a physical pendulum made from a thin, rigid, and uniform rod whose length is d.
In a scientific test conducted in Arizona, a special cannon called HARP shot a projectile straight up to an altitude of 180.0 km. if the projectiles initial speed was 3.00 km/s, how long did it take the projectile to reach its maximum height?
A dart is thrown horizontally toward the bull's-eye, point P on the (non-standard size) dart board in the figure, with an initial speed of 8.9 m/s. It hits at point Q on the rim, vertically below P 0.14 s later. What is the distance PQ? How far aw..
The index of refraction for red light in water is 1.331 and that for blue light is 1.340. what are the underwater angles of refraction for the blue and red components of the light
A +30 mC point charge sits at the center of a spherical thin metallic shell of 5.0 cm radius. The shell has a charge of -50mc. at what distance from the center is the electric potential zero
Measuring the Speed of Sound. A student investigator is measuring the speed of sound by looking at the time for a brief, sinusoidal pulse from a loudspeaker to travel down a tube, What was the approximate length of the tube
A pilot knows a 7.00 km distance lies between two landmarks A and B on the level ground below. When he is over landmark A, What is the airplanes altitude
Two rectangular blocks are stacked on a table. The lower block has a mass of 38.6 kg and upper block has a mass of 3.40 kg. The coefficient of kinetic friction among the lower block and the table is 0.260. The coefficient of static friction among the..
A hoop and a cylinder of the same mass and outer radius are rolled up an incline plane with the same speed. Which goes farther up the incline plane? Explain
Find speed of the block at the bottom of the ramp. What is tangential acceleration of a bug on the rim of a 78 rpm record of diameter 7.41 in. if the record moves from rest to its final angular speed in 4 s.
An 81.0 kg in-line skater does +3500J of nonconservative work by pushing against the ground with his skates. What is the change in height of the skater
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