Which of the following factors is LEAST likely to attract pollinators to a flower?
A. the amount of nectar
B. color of the flower in visible light
C. taste of the ovules
D. odor
E. color of the flower in UV light
Answer: C
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Identify the structure indicated by #2:
A. uterus B. cervix C. vagina D. ovary E. fallopian tube or oviduct
Bacteria and archaea use the same four bases in their DNA as eukaryotes. This supports which of the following statements?
A. All three domains arose from a common ancestor. B. DNA was the original genetic material. C. Bacteria, archaea, and eukaryotes contain the same set of genes. D. DNA evolved independently at least three times. E. Bacteria, archaea, and eukaryotes could interbreed.
A(n) ________ is a photograph using X-ray film that is used to identify the position of radiolabeled molecules on a gel
A) Southern blot B) northern blot C) X-rayogram D) autoradiogram E) radiocopy
The myofibrils contain two protein filaments that contract the muscle. Of these, the ________ are the thinner filaments
Fill in the blank(s) with correct word