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
ANSWER: b
You might also like to view...
Two or more alleles of a gene are circulating at relatively high frequency in a population's gene pool. What term describes this state?
a. frequency-dependent selection b. polyploidy c. multiple allele systems d. balanced polymorphisms e. prominent alleles
What type of reproduction produces genetic clones of a parent?
a. sexual reproduction b. asexual reproduction c. hermaphrodites d. external fertilization e. internal fertilization
In many parts of the Everglades in Florida, excessive irrigation is lowering water levels and allowing salt water to enter the normally freshwater swamps. Why is this a problem for plants that have adapted to life in these swamps?
A. The salt competes with minerals for uptake by the plants, limiting their growth. B. Salts bind to nitrogen, preventing it from being taken up. C. The plants cannot move sugars down the xylem if there is salt outside of the roots pulling water out. D. Photosynthesis is inhibited by salt. E. The plant roots cannot take up water if the soil salt concentration is high.
Which of these is not found in a strand of DNA?
A) hydrogen bonds B) a 5-carbon sugar C) phosphate groups D) nitrogen-containing bases E) sterols