Behaviors that appear to be genetically programmed are called
A. innate.
B. ultimate.
C. fixed action patterns.
D. reflexes.
E. voluntary.
A. innate.
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The monomer of tubulin:
a. Has 3 subunits in it b. Is a monomer with a molecular weight of 42 kDa c. Is a dimer with a molecular weight of 220 kDa d. Is a heterodimer with a total molecular weight of 110 kDa e. None of the above
A scolex is
a. the anterior attachment organ of a tapeworm. b. the feeding organ of a fluke. c. an appendage of a sandworm. d. the egg of a sea star. e. the larva of an aquatic insect.
Place these steps of enzyme catalysis in the correct order:
1. The substrate and enzyme change shape. 2. The substrate enters the active site. 3. The enzyme reverts to its original configuration. 4. The product is expelled. A) 2, 1, 4, 3 B) 1, 3, 4, 2 C) 2, 3, 1, 4 D) 1, 2, 3, 4 E) 2, 1, 3, 4
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.