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What was some early evidence of the existence of viruses? Why were they difficult to study?
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You take a small section of leaf and view it underneath a microscope. You count 25 stomata. Now you want to calculate how many stomata would be in a leaf the size of a penny. a) Calculate the area of the view of view (A= ...
If the atomic number of an element is 12 and the atomic mass is 25. How many protons are there in the nucleus? How many neutrons are there in the nucleus? How many electrons are in the atom?
Which are the logical steps proposed by Margulis that would help explain why the accumulation of oxygen in the atmosphere led to the evolution of mitochondria.
Question: All cancers are characterized by uncontrollable cell growth and division, and when untreated, may be fatal. Cancers that occur in childhood are usually more malignant than those developed later in life. 1) Why ...
A mother has A blood, the child has type O, Mr. White has type B blood, and Mr. Green has AB. Whose the father? Mr. White or Mr. Green; Either Mr. White or Mr. Green; Neither Mr. White or Mr. Green could be the father an ...
Select two of the mechanisms of evolutionary change (mutation, gene flow, genetic drift or non-random breeding) and explain what each is and how each can lead to evolutionary change(change in genetic compositions within ...
Calculate the concentrations at eqbm of H2CO3, HCO3-, CO32-, and H+ in a saturated aq solution of H2CO3 in which the original concentration of H2CO3 is 0.034M (Ka1= 4.3*10^-7, Ka2 = 4.8*10^-11)
A man and woman, both with normal vision, have (1) a color-blind son who has a daughter of normal vision; (2) a daughter of normal vision who has one color-blind son and one normal vision son, and (3) another daughter of ...
Question: Overview: Although it may sound like science 2520, DNA and RNA technologies are already used in products today. In this discussion you will examine one specific product, organism, or technology in your initial ...
Question: "Phytoplankton, Chemosynthesis, and Mitochondria" For your primary post, please respond to one of the following three topics with a post of at least 125 words that addresses each point given in the instructions ...
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p
Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As
Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int
Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As