Formation of which one of the following large organic molecules from their respective building blocks does not result in the release of at least one water molecule?
A. proteins
B. phospholipids
C. polysaccharides
D. nucleic acids
E. proteins, phospholipids, polysaccharides and nucleic acids all release water as a result of their formation.
Answer: E
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Which of the following does NOT affect blood
glucose levels? a. glucagon b. epinephrine c. parathyroid hormone d. glucocorticoids e. insulin
Which of the following statement is based on scientific observation and reasoning?
(a). Some chemical compounds react differently in different human cultures. (b). If a tree falls in a forest but this is never witnessed by a human, there are no physical or biological consequences. (c). Many physical and biological phenomena lack any cause-and-effect; outcomes from one situation may be one way today and another tomorrow. (d). Objects fall downward anywhere on the earth's surface regardless of the observer. (e). A scientist records only the data that are easiest to interpret.
Is haplodiploidy a necessary condition for the evolution of eusociality?
a. Yes, true eusociality is found only in the hymenoptera. b. Yes, eusociality can only evolve when indirect fitness is as high as between haplodiploid sis-ters. c. No, true eusociality is also found in diploid organisms. d. No, coefficients of relatedness between sisters are never 0.75 because there are always multiple fathers.
The K/T event was the transition of plants from water to land.
Answer the following statement true (T) or false (F)