The nerve that leaves the back of each eye is the _______
Fill in the blank(s) with correct word
Ans: optic nerve
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What would be considered the control group in this experiment?
a. the Scottish terriers exposed to herbicide b. the Scottish terriers without cancer c. any type of dog that does not have cancer d. all dogs that are exposed to herbicides
You are an attending physician supervising a new resident. Together, you decide to treat a patient with a steroid drug. The resident administers the drug and watches the patient anxiously. "It's not working," he mutters. How do you respond?
A. "You're right, it doesn't seem to be working. Let's increase the dose, since we need to achieve high steroid levels in the blood." B. "Why don't you go on your rounds and come back? Steroid hormones need several hours to work, since they regulate gene expression. Transcription and translation take time." C. "We forgot to administer the carrier protein to get the drug across the cell membrane. We can add that now." D. "Let's grab a cup of coffee and then check again. Activating the G-protein coupled receptor and its downstream kinase cascade can take several minutes." 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 hormones? 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?
Which of the following is the correct order of
the three lines of defense?
a. barriers that exclude pathogens>>adaptive immunity>>innate immunity b. barriers that exclude pathogens>>innate immunity>>adaptive immunity c. innate immunity>>adaptive immunity>>barriers that exclude pathogens d. apaptive immunity>>barriers that exclude pathogens>>innate immunity e. apative immunity>>innate immunity>>barriers that exclude pathogens
Mules are relatively long-lived and hardy organisms that cannot, generally speaking, perform successful meiosis. Consequently, which statement about mules is true?
A) They have a relative evolutionary fitness of zero. B) Their offspring have less genetic variation than the parents. C) Mutations cannot occur in their genomes. D) If crossing-over happens in mules, then it must be limited to prophase of mitosis. E) When two mules interbreed, genetic recombination cannot occur by meiotic crossing over, but only by the act of fertilization.