A stalk of celery is placed in a solution of blue colored dye. After one hour, the leaves have blue fluid in their veins
Which property of water is being demonstrated?
a. surface tension
b. high specific heat
c. adhesion and cohesion
d. evaporation and cooling
e. lower density as a solid than as a liquid
c
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The pan genome of a species is the genomic content that is
A) common to all strains of the same species. B) present in one or more strains of the same species. C) shared with all other prokaryotes. D) hypothetical or uncharacterized genome content of a species.
patient with melanoma receives three types of therapy: surgery, radiation, and interferon. Which of these represents something the immune system uses against cancer as well?
A. Radiation -- a class of lymphocytes uses powerful electromagnetic radiation to attack "altered self" cells. B. Interferon -- TH cells and NK cells secrete interferon in response to tumor cells. C. Interferon -- NK cells insert interferon into the membranes of tumor cells, creating large pores that burst the cells. D. Interferon -- In complexes bound with MHC proteins, the interferons indicate the presence of altered tissue to B cells. 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 actions of the immune system? 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 is the endoplasmic reticulum (ER)
What will be an ideal response?
Which term refers to the landing platform for pollen in flowering plants?
a. the stigma b. the filament c. the style d. the anther