Which structure contains the angiosperm egg?
A. style
B. stigma
C. anther
D. embryo sac
E. endosperm
Answer: D
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In Bacteria, sensor kinases that respond to extracellular signals transfer this signal to the cytoplasmic machinery by typically phosphorylating the ________ residues
A) histidine B) serine C) threonine D) tyrosine
The discovery of immense ridges and trenches stretching thousands of kilometers across the seafloor in the 1950’s led
to acceptance of the theory of ____.
a. magnetic poles b. creationism c. evolution d. natural selection e. plate tectonics
Which part of the brain is involved in sensory adaptation?
A. pons B. cerebellum C. thalamus D. medulla oblongata E. ventricles
The control in an experiment _______.
A. makes the experiment valid B. is an additional replicate for statistical purposes C. reduces the experimental errors D. minimizes experimental inaccuracy E. allows for comparisons to the experimental group