Many species of birds form large flocks. What dispersion pattern describes this behavior?
A. random
B. uniform
C. rapid
D. social
E. clumped
E. clumped
Biology & Microbiology
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Eukaryotes are able to express different proteins over time or at certain points in the life cycle by using ________.
A. silencers B. riboswitches C. siRNAs D. mediators
Biology & Microbiology
Reproduction by mitosis only is asexual.
Answer the following statement true (T) or false (F)
Biology & Microbiology
Cutting DNA with a particular restriction enzyme produces DNA fragments that can be separated by enzymes.
a. true b. false
Biology & Microbiology
Myeloid stem cells give rise to all formed elements in the blood except
A. monocytes. B. lymphocytes. C. basophils. D. platelets. E. erythrocytes.
Biology & Microbiology