Which of the following is a germ layer that forms the lining of the urinary, respiratory, and digestive tracts?
A) ectoderm
B) endoderm
C) mesoderm
D) embryonic disk
B
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The most numerous cells carried in the plasma
are
a. erythrocytes. b. leukocytes. c. platelets. d. thrombocytes. e. cyanocytes
Scientists believe whales evolved from land
animals for which of the following reasons?
a. they are genetically close to a group of land animals called artiodactyls b. fossils found had a mix of whale and artiodactyl features c. some had tails but swam with their feet d. some had feet but swam with their tails e. all of these are reasons that scientists believe whales evolved from land animals
The volume of air remaining in the lungs following a maximum expiration is called
A) residual volume. B) tidal volume. C) inspiratory reserve volume. D) inspiratory capacity. E) vital capacity.
Red light has a wavelength that is the most effective for triggering stomatal opening. Indicate whether the statement is true or false