During week 2 of development, the embryoblast receives its nutrients via
A、diffusion
B、yolk sac nourishment
C、reverse osmosis
D、fetal capillaries
A、diffusion
B、yolk sac nourishment
C、reverse osmosis
D、fetal capillaries
A、two
B、three
C、four
D、five
A、a. loss in a market to buyers and sellers that is not offset by an increase in government revenue.
B、b. loss in revenue to the government when buyers choose to buy less of the product because of the tax.
C、c. loss of equity in a market due to government intervention.
D、d. loss of total revenue to business firms due to the price wedge caused by the tax.
A、Extraembryonic somatic mesoderm and cytotrophoblast
B、Extraembryonic somatic mesoderm and syncytiotrophoblast
C、Extraembryonic somatic mesoderm, cytotrophoblast, and syncytiotrophoblast
D、Extraembryonic visceral mesoderm, cytotrophoblast, and syncytiotrophoblast
A、Between the cytotrophoblast and syncytiotrophoblast
B、Within the extraembryonic mesoderm
C、Within the hypoblast
D、Within the epiblast
A、Epiblast only
B、Epiblast and hypoblast
C、Ectoderm and endoderm
D、Epiblast, mesoderm, and hypoblast
A、Epiblast and hypoblast
B、Ectoderm and endoderm
C、Ectoderm,mesoderm,and endoderm
D、Epiblast,mesoderm,and hypoblast
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