Which of the following soil minerals is most likely leached away during a hard rain (ie, dissolve easily in soil water)?
a. H+
b. Ca++
c. K+
d. Na+
e. NO3-
Answer: e. NO3-
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Shannon has considered herself an extremely healthy person for most of her life. She is a marathon runner and watches her diet very carefully. She has 8% body fat, weighs 105 pounds, and is 5 foot 10 inches tall
Why might Shannon's health still be of concern? A) She is overweight for her height. B) She likely has metabolic problems associated with high blood pressure. C) She doesn't have enough body fat for menstruation or pregnancy. D) She doesn't consume enough nutrients for normal bodily functions.
A measurement of a microbe is reported as 1 × 10-6 m, also known as
A. centimeters (cm). B. millimeters (mm). C. micrometers (?m). D. nanometers (nm). E. yards.
Amniocentesis and genetic screening reveal that a fetus carries a defective L1-CAM gene. What defects do you expect, and why?
What will be an ideal response?
A biofilm is an example of (antagonism/competition/cooperation) among microbes.
Fill in the blank(s) with the appropriate word(s).