What deficiency symptom is common among plants with inadequate levels of nitrogen, magnesium, iron, zinc, or
copper? What characteristics would be seen in the plants’ leaves?
What will be an ideal response?
ANSWER: Chlorosis is a symptom in plants with inadequate levels of nitrogen, magnesium, iron, zinc,
or copper. Chlorosis is associated with light-green newer leaves and older leaves that are
yellow and die..
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The first surgical antiseptic to be used was
A. ethanol. B. phenol. C. iodine. D. None of the choices are correct.
What group of animals is considered the most successful?
a. Echinoderms b. Arthropods c. Annelids d. Molluscs
Although an "obvious" extension of evolutionary theory, evolution does not address
A. the roles of mutations in evolution. B. which genotypes are inherited by each offspring from its parents. C. what variations are in each gene pool. D. All of the answer choices are correct. E. how life began.
Mechanical barriers include:
A. sweat, tears, and stomach acid B. phagocytes and natural killer cells C. antibodies (immunoglobulins) D. skin and mucous membranes