Social insect colonies are composed of highly specialized groups called what?
A. clines
B. ecotypes
C. castes
D. species
E. filial relatives
C. castes
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Homologous genes in different species are called
A. analogs. B. paralogs. C. orthologs. D. dialogs. E. monologs.
The graph below represents the results of an experiment looking at mate preference in female
black widowbirds. The researcher used three groups of male birds: one with artificially
shortened tails, one with artificially lengthened tails, and the control group with unaltered tail
lengths.
Joining a scion with useful fruit traits to a stock with useful root traits is called ____
a. fragmentation b. protoplast fusion c. somaclonal selection d. grafting e. apomixes
What is the process in which electron flow through electron transfer chains sets up a hydrogen ion gradient that drives ATP formation?
A. Photosynthesis B. Electron transfer phosphorylation C. Electromagnetic radiation D. Light-dependent reaction E. Photolysis