Every type of chemical bond contains a certain amount of energy. The total bond energy, which is essentially
equivalent to the total potential energy of the system, is a quantity known as:
a. entropy.
b. enthalpy.
c. free energy.
d. kinetic energy.
e. thermodynamic energy.
b
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External chemical signals that coordinate potential reproductive partners are called _____
A) hormones B) pheromones C) paracrine signals D) cytokines E) gametes
Somatic cells of roundworms have four individual chromosomes per cell. How many chromosomes would you expect to find in an ovum from a roundworm?
A) four B) two C) eight D) a diploid number
Based on DNA evidence, of the following
animals, whales are most closely related to
a. sharks. b. sheep. c. horses. d. dogs. e. elephants
If a DNA sequence is ATC, what is the sequence in the molecule produced during transcription?
a. UAG b. TAG c. ATC d. AUG e. AUC