Ovulation occurs due to a surge in ________ concentrations
A) FSH B) progesterone C) testosterone D) estrogen E) LH
E
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The group including ferns, whisk ferns, and horsetails includes plants with which of the following characteristics? Select all correct choices
A. plants with helically arranged leaves B. plants with leaves arranged in whorls C. plants lacking leaves but possessing photosynthetic stems D. plants having "underground" stems E. plants lacking roots
Which of the following statements is incorrect about hepatitis A?
A. Havrix is an inactivated vaccine for prevention. B. An infection predisposes a person for liver cancer. C. Immune globulin therapy helps decrease the severity. D. It is transmitted by the oral-fecal route. E. The virus produces flu-like symptoms with discomfort near the liver and darkened urine.
The mighty chestnut tree once dominated many of our Appalachian forests but was decimated by an exotic fungus in the first part of the 20th century
A few small groves of trees still remain in isolated pockets, and living roots of some of the fallen ancient trees still try to send up new shoots. These shoots always die as soon as they are exposed to the fungus. How could chestnut trees be genetically modified to be resistant to the fungus and to grow again?
Which of the following is another name for the template strand (the strand of DNA that is transcribed)?
A) anticodon strand B) antisense strand C) sense strand D) transcription strand