DNA analyses show that the ___ of many dissimilar organisms show important similarities at the molecular level.
Fill in the blank(s) with the appropriate word(s).
Ans: genes
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You are working with a specific enzyme-catalyzed reaction in the lab. You are a very careful experimentalist, and as a result, at the beginning of each of your experiments, you measure the temperature in the lab. On days 1 through 5, the temperature in the lab was 20oC. Today is day 6 of your experiment, and the temperature in the lab is 30oC. How do you predict that this will alter the rate of
your enzyme-catalyzed reaction? A. It will decrease the rate B. It will increase the rate C. It could possibly increase or decrease the rate D. it will not affect the rate
T cell receptors are identical to antibodies
Indicate whether this statement is true or false.
Major extinctions of dinosaurs are associated with large meteor impacts, including the final extinction that wiped them out at the Cretaceous-Tertiary boundary. The particulate matter that would have arisen as a result of impact would have entered the atmosphere and had secondary impacts. Some scientists believe that a fundamental difference between mammals and dinosaurs allowed mammals to survive this event, but doomed the dinosaurs. What may have characterized the last generation of dinosaurs as they went extinct?
A. Lungs clogged with dust. B. Highly skewed sex ratios. C. Hormonal disruptions due to contaminated water. D. Weak eggshells due to radiation. E. Inability to recognize mates due to diminished sunlight. Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about dinosaurs? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
What are the important parts of the microscope?
What will be an ideal response?