A deficiency of vitamin D causes
1.scurvy.
2.rickets.
3.kidney stones.
4.a goiter.
5.dwarfism.
2
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____ are phagocytes that engulf bacteria and cellular debris
a. Eosinophils b. Leucocytes c. Monocytes d. Platelets e. Neutrophils
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.
Structurally similar receptor tyrosine kinases have been found in all multicellular animals. This
suggests that ________.
a. RTK genes are resistant to mutation b. RTKs evolved relatively early in the history of animals c. RTKs evolved from G proteins d. RTKs cannot be involved in processes vital to animals e. RTKs have evolved independently of each other in animals
"The total amount of mass-energy in the universe is constant," is a statement of
A) the first law of thermodynamics. B) the second law of thermodynamics. C) thermodynamic spontaneity. D) entropy. E) enthalpy.