hCG stimulates which structure to secrete estrogen and progesterone?
a. the zona pellucida
b. the corona radiata
c. the corpus luteum
d. the ovum
e. the placenta
C
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Darwin was inspired by ____ ideas on the geologic history of Earth, which allowed him to better understand the
geology of the regions he would visit on his journey aboard the Beagle.
a. Lyell’s b. Cuvier’s c. Aristotle’s d. Paley’s e. Lamarck’s
Four of the five pairings listed below match the
correct taxonomic group and common name. Select the exception. a. Chondrichthyes: sharks b. Urochordata: lancelets c. Amphibia: toads d. Reptilia: lizards e. Osteichthyes: perch
Eutrophic lakes are typically clear, with little algal growth
Indicate whether the statement is true or false
Which of the following is composed of DNA?
A. centriole and chromosomes B. chromosomes and chromatin C. chromatin and nucleoli D. nucleoli and centrioles