Social insect colonies are composed of highly specialized groups called what?  

A.  clines
B.  ecotypes
C.  castes
D.  species
E.  filial relatives


C.  castes

Biology & Microbiology

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Homologous genes in different species are called

A. analogs. B. paralogs. C. orthologs. D. dialogs. E. monologs.

Biology & Microbiology

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.

Biology & Microbiology

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

Biology & Microbiology

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

Biology & Microbiology