A benign tumor (select all correct choices):
A. is a mass of rapidly dividing cells.
B. has clear boundaries encapsulating it and
is not invading nearby tissues.
C. rarely has life-threatening effects unless it
is interfering with the function of a vital organ.
D. has defects in the regulation of cell
division.
A,B,C,D
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You come across a recipe for rhubarb pie. Never having heard of rhubarb, you do a little research. You find out that the part of a rhubarb plant that people eat is the petiole of a large leaf. You purchase some rhubarb for your pie and notice that it contains many long stringy fibers. Based on your knowledge of plant tissues, you know that the stringy fibers are
A. parenchyma tissue. B. phloem tissue. C. sclerenchyma tissue. D. collenchyma tissue. E. xylem tissue. 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 the characteristics of different plant cell types? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach 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?
You are a genetic counselor, and a couple comes to you with concerns that if they have a child
together it could have hemophilia. Neither one of them has hemophilia, but the woman's biological father did have an X-linked recessive form of hemophilia. Which of the following would be a correct thing to tell them?
a. Any child that they produce will have a 50% chance of having hemophilia. b. All of their male offspring will have hemophilia, and each of their female offspring will have a 50% chance of having hemophilia. c. None of their offspring should have hemophilia, but all of their female offspring will be carriers for hemophilia. d. Each of their male offspring will have a 50% chance of having hemophilia, and while their female offspring should not have hemophilia, they will each have a 50% chance of being carriers. e. All of their male offspring will have hemophilia, and while their female offspring should not have hemophilia, they will all be carriers.
Nutrients and antibodies move across the placenta from mother to embryo or fetus, as do __________, which can cause birth defects.
Fill in the blank(s) with the appropriate word(s).
Bacterial encephalitis and meningitis are difficult to treat because
A) no medications exist for treatment of these infections. B) antibiotics damage nervous tissue. C) many antibiotics cannot penetrate the blood-brain barrier. D) the infections move along peripheral nerves. E) it is very difficult to determine the causative microbe.