Match the structure of the amniotic egg with the correct description.
A. Amnion
B. Yolk sac
C. Chorion
D. Allantois
A. Protection of the embryo
B. Contains nutrients
C. Gas exchange
D. Compartmentalizes wastes
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Indirect immunofluorescence involves fixing the specimen onto a slide, adding fluorochrome-labeled antibodies and then incubating before examining on the microscope.
Answer the following statement true (T) or false (F)
Which group of mammals exhibits the widest
distribution and greatest diversity? a. marsupials b. monotremes c. placentals d. marsupials and monotremes e. placentals and monotremes
A genetic abnormality that may result in males with mental retardation and reduced fertility is
a. XXY. b. XYY. c. Turner syndrome. d. Down syndrome. e. XXX.
Three fossils are found in undisturbed layers of rock, or strata. Fossil A is closest to the Earth's surface and Fossil C was deeper than Fossil B. Given this limited data, what assumptions can you make about these fossils?
What will be an ideal response?