Which of the following statements about mammalian cleavage is false?
A. The embryo increases in overall size
during cleavage.
B. It occurs more slowly than cleavage in
other organisms.
C. Early divisions do not occur at the same
time.
D. Zygotic transcription begins as early as the
two-cell stage.
E. Cell divisions extend completely through
the egg.
A
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Not including organisms in the Enterobacteriaceae family, the most common gram-negative bacilli encountered in clinical specimens are:
a. Pseudomonas. b. Burkholderia. c. Ralstonia. d. Vibrio.
A structure with stems and leaves that arises from an apical meristem is called a ____
a. vascular system b. protonema c. sporangium d. rhizome e. shoot system
Which hormone is responsible for the release of follicle stimulating hormone and luteinizing hormone?
a. oxytocin b. estrogen c. gonadotropin-releasing hormone d. testosterone
Which of the following inaccurately represents normal forces across capillary walls?
A) Interstitial fluid oncotic pressure is almost zero. B) At rest, net filtration occurs across capillary walls. C) Interstitial fluid hydrostatic pressure increases from arteriole end to venous end. D) Capillary hydrostatic pressure decreases from arteriole end to venous end. E) Capillary oncotic pressure is due primarily to plasma proteins.