Humans convert approximately ________ of the energy stored in food to useful work

A) 22%
B) 34%
C) 55%
D) 99.9%


B

Biology & Microbiology

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Peptide bond formation is catalyzed by the enzymatic activity of an RNA molecule

A. true B. false

Biology & Microbiology

Blood glucose levels must be carefully maintained within a narrow window. What endocrine organ is responsible for this task? 

A. pancreas B. pineal gland C. pituitary gland D. parathyroid gland

Biology & Microbiology

The evolutionary relationships between the eukaryotic supergroups are depicted in the diagram.Diatoms share a more recent common ancestor with dinoflagellates than with water molds.

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

Biology & Microbiology

Many protozoan species can form a _____ that can survive for periods outside a host.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology