Which of the following is NOT a treatment for a blocked coronary artery?
a. coronary bypass
b. laser angioplasty
c. balloon angioplasty
d. molecular angioplasty
e. stent
ANSWER: d
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Most chemolithotrophs have electron transport chains that terminate with O2 as the final electron acceptor.
Answer the following statement true (T) or false (F)
Which of the following is a natural process of plants that can be used by humans to remove toxins from soils? Check all that apply.
_____ secretion of a substance from the roots that breaks down the toxic chemical _____ "storage" of a toxic chemical in plant tissues, which are then removed from the site _____ root pressure pushing toxins from deep in the soil towards the surface _____ physiological breakdown of the chemical into harmless products _____ transport of toxins absorbed by the roots into the shoots, where they can be collected more easily
If a membrane is impermeable to water, the flow in and flow out will both be zero
a. True b. False
In a certain breed of chicken, two genes control color. A dominant allele (I) inhibits expression of any
color gene (C). A second recessive gene (c) results in albinism when homozygous (cc). Give the F2 white phenotypic ratio of a colored chicken ii CC with a chicken II cc. What will be an ideal response?