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Read over the parts of the microscope and answer the following questions: 1. What do you call the lens you look through on the microscope? 2. What is the difference between the ocular lens and the objective lens? 3. Where do you place the slide on the microscope? 4. Which adjustment, course or fine, do you use when you are observing the highest power? 5. What would the total magnification be if you are looking through the ocular and using each of the following objectives. Ocular Objective Total Magnification 10x 4x 10x 10x 10x 40x Experiment 1, Virtual Magnification Procedure, How Big Is It? After completion answer the following questions: 1. At what magnification do you first notice the ragweed pollen? 2. Which is bigger, a rhinovirus or E. Coli? 3. Based on the magnification, how many of the E. Coli can fit into the same space as the head of a pin? 4. About how many red blood cells could fit across the diameter of a human hair (again, look at the magnification scale)? Experiment 2, Virtual Microscope Procedure. After completion answer the following questions: 1. What is the first step normally taken when you look through the ocular lenses? 2. What is the highest objective lens you can use to see the entire letter e? 3. The nuclei (the structure inside a cell that contains DNA) of the cheek cells have been stained using a special dye so that they appear purple. What shape are they? 4. At high magnification, you may notice that not all of the nuclei in the onion root tip slide appear as the shape you described in the question above. What do they look like? 5. After completing the m1 exercise in the "Try this" section, how tall is the letter e?
Describe how prokaryote chromosomes differ from eukaryotes chromosomes. Provide the payoff matrix for the basic Hawk/Dove game assuming the actors are genetically related.
Would a plant performing CAM idling be more likely to be using cyclic electron flow or noncyclic electron flow in the light reactions? Explain
q1. find out one example of convergent evolution among caminalcules. this means finding cases where two or more species
List the two kinds of macromolecules that have been partially digested by the time acid chim moves into the intestine. Where did this digestion take place, and what enzymes are involved.
ESI-TOF MS of a protein from a low pH solution generates a series of m/z peaks. The two most dominant successive peaks have m/z values of 510.0 and 502.9.
how should a community effectively organize to achieve improvement in community health? provide specific examples and
Reactant X participates in the reaction X ? Y + Z. Two experiments were performed to determine the rate of the reaction with 0.200 M and 0.400 M of reactant X.
Describe the structure of the utricle and saccule and explain how linear acceleration results in stimulation of the hair cells within these organs.
Are ions stable or unstable and are atoms always stable or unstable when the number of protons does not equal to the number of electrons?
On a particular microscope, the numerical apertures of the condenser and medium power objective lenses are 1.25 and 0.25, respectively. You are supplied with a filter that selects a wavelength of 520nm.
darwins theory of evolution was developed around three central principles the principle of variation the principle of
you are the science reporter for your local newspaper. your editor asks you to write an article on a major topic within
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