A mineral soil contains less than 20 percent organic carbon while an organic soil contains at least that amount.

Answer the following statement true (T) or false (F)


True

Biology & Microbiology

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The surface receptors that recognize and bind signaling molecules are ____

a. glycoproteins b. glycolipids c. phospholipids d. promoters e. ligands

Biology & Microbiology

Which white blood cell(s) is (are) the only

cell(s) that produces antibodies?

a. B cell b. T cell c. natural killer cell d. dendritic cell e. all of these

Biology & Microbiology

The movement of chemicals through ecosystems is known as

A. community ecology. B. biogeochemical cycling. C. biomagnification. D. global warming E. pollution

Biology & Microbiology

Septic shock is typically associated with

A) superantigens. B) exotoxins. C) exotoxins or endotoxin. D) either Gram-negative or Gram-positive infections. E) Gram-negative infections.

Biology & Microbiology