Glands that produce secretions just before ejaculation that may function to lubricate or rinse urine from the urethra are called ________
A) prostate
B) vas deferens
C) bulbourethral
D) endometrium
C
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Suppose you came across a novel organism you suspected belonged to one of the following animal phyla: Porifera, Cnidaria, Ctenophora, or Acoelomorpha
Which of the following characteristics would NOT be helpful in placing the organism into the correct phylum? A) the organism's feeding strategy B) the organism's habitat C) whether the organism has a coelom D) whether the organism has a gut E) whether adults are sessile or motile
A fully functional corpus luteum secretes ____
a. LH and FSH b. estrogens and progesterone c. GnRH and estrogens d. estrogens and FSH e. progesterone and LH
What feature of cytochromes makes them valuable in electron transport systems?
A) Aspartate residues in the active site. B) The porphyrin ring. C) The multiple ?-helices. D) The iron ion.
An mRNA molecule is synthesized by __________.
A) replication B) duplication C) transcription D) translation