Magnification is achieved in a compound microscope through the initial magnification of the specimen by the ________ lens. This image is then projected to the ________ lens that will further magnify the specimen to form a virtual image received by the eye.
Fill in the blank(s) with the appropriate word(s).
objective; ocular
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Pili may do four of the following. Which is the exception?
a. They help cells attach to surfaces. b. They function in conjugation. c. They extend from the cell surface. d. They can be transferred between cells. e. They function in cell locomotion.
Which of the following is not true about cervical cancer, which is a relatively common cancer?
a. It can be detected early by a PAP test. b. It is usually caused by human papillomavirus (HPV). c. It causes the cervical cells to make peptide E7, which disrupts the cell cycle. d. It spreads by blocking the retinoblastoma protein RB. e. It usually remains localized.
What process creates daughter cells with a mixture of paternal and maternal chromosomes?
a)asexual reproduction b)semi-conservative replication c)random fertilization d)independent assortment e)mutation
Oxidation involves the ________ , and reduction involves the
A) loss of electrons; gain of electrons B) loss of oxygen; gain of oxygen C) gain of electrons; loss of electrons D) gain of oxygen; loss of oxygen