After 20 years, what was the total number of bird species?
a. 14
b. 60
c. 120
d. cannot be determined from this graph
Answer: a. 14
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Gene function is annotated based on homology between the ORFs of a genome and proteins whose function has been proven experimentally. What "-omic" approach could help us determine the function and structure of proteins encoded by uncharacterized
A) metabolomics B) metagenomics C) transcriptomics D) proteomics
The Krebs cycle begins when acetyl-CoA combines with _________ to form ____________
A. pyruvate; citrate B. malate; oxaloacetate C. oxaloacetate; malate D. oxaloacetate; citrate E. citrate; cis-aconitate
Why are flexors and extensors considered antagonistic muscles?
A. Both muscle groups bend a limb at the joint, but each can only contract while the other extends. B. Both muscle groups exert only a pulling force when they contract, but they produce opposing movements of the joint. C. One muscle group exerts a pulling force while the other exerts a pushing force. D. Hypertrophy of one muscle group induces atrophy of the other muscle group.
Wolbachia can have ALL of the following effects on their insect hosts EXCEPT
a. the killing of males. b. parthenogenesis. c. the sterilization of females. d. feminization.