Which tissues are correctly matched to their progenitor germ layer? (Check all that apply.)  

_____  ectoderm—lining of the digestive tract
_____  ectoderm—epidermis
_____  endoderm—lining of the respiratory tract
_____  endoderm—muscles
_____  mesoderm—blood vessels
_____  mesoderm—gonads


_____  ectoderm—lining of the digestive tract
__X__  ectoderm—epidermis
__X__  endoderm—lining of the respiratory tract
_____  endoderm—muscles
__X__  mesoderm—blood vessels
__X__  mesoderm—gonads

Biology & Microbiology

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What blood type is called the universal donor?

A. O- B. AB+ C. Ab- D. O+

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Which group has the largest number of chromosomes?

a. hepatophytes b. gymnosperms c. angiosperms

d. lycophytes e. charophytes

Biology & Microbiology

How much larger do eukaryotic cells tend to be than prokaryotic cells?

a. 150–1000 times larger b. 10–100 times larger c. 5–10 times larger d. 1000 times larger or more

Biology & Microbiology

Blood flows from the left ventricle into the pulmonary artery

____________________ Indicate whether the statement is true or false.

Biology & Microbiology