Which of the following is insoluble in water?
A) DNA B) Salt C) Sucrose D) Amino acids E) Olive oil
E
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Which of the following statements about oocytes and ovulation is correct?
a. the production of primary oocytes continues in women from the onset of puberty until the onset of menopause b. meiotic divisions are complete at the time of ovulation c. at ovulation, the structure released from the follicle includes a secondary oocyte and polar body d. all of the statements are correct
The main solutes in the filtrate as it enters the distal convoluted tubule are (select all correct choices):
A. urea. B. electrolytes. C. other wastes. D. amino acids. E. nucleotides.
Which of the following choices is the ultimate cause of the ability of male zebra finches to
discriminate between the songs of established neighbors and those of strangers?
a. Cells in a nucleus in the forebrain fire more often when the song of a new male is heard. b. Neurons cease to respond to the sound of an established neighbor. c. Zebra finches are genetically programmed to tolerate territory-holding neighbors but repel invaders. d. Zebra finches are capable of selective learning. e. This adaptation allows males to produce more offspring by saving their energy for real battles.
A fertilized egg is a
A) sporophyte. B) gametophyte. C) zygote. D) spore. E) gamete.