Respond to the following statements with reference to the five plant micronutrients listed below.
A. This nutrient is a component of chlorophyll and many enzymes.
B. This nutrient plays an important role in cell wall formation.
C. This nutrient is a cofactor in photosystem II and also functions in signaling.
D. This nutrient is a component of many proteins, and serves as cofactor for many enzymes.
E. This nutrient is involved as cofactor in electron transfer chains.
A. iron
B. boron
C. chlorine
D. zinc
E. copper
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Why is the evolutionary origin of all eukaryotes no longer considered to be a simple evolution from a single Archaea species?
a. Archaea contain insufficient genetic material to explain eukaryotic evolution. b. Fossil records provide evidence that Archaea evolved after eukaryotes. c. Some eukaryotic genes share more similarity with Bacteria than Archaea. d. Some eukaryotes contain mitochondria, which are invariably fatal to Archaea.
Provide three types of evidence (from different subdisciplines in biology) that scientists commonly use to provide support for the theory of evolution
What will be an ideal response?
All of the following are strictly necessary for infectious organisms infecting a host, EXCEPT:
A. Evasion of Host defences B. Multiplication and Spread C. Entry D. Disease E. Shedding from body
The outermost layer of the digestive tract is the:
A) muscularis externa. B) submucosa. C) mucosa. D) serosa.