Cartilage lacks
a. matrix.
b. collagen.
c. blood vessels.
d. cells.
e. ground substance
C
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The nasal septum is partially formed by the
a. palatine bone. b. vomer bone. c. maxillary bone. d. nasal bone. e. sphenoid bone.
What tissue in the gastrula gives rise to muscle?
A) ectoderm B) mesoderm C) endoderm D) gastrula
The distinctive mating signals that have evolved as part of an animal's courtship illustrate what type of reproductive
isolating mechanism? a. gametic isolation
b. temporal isolation c. behavioral isolation d. mechanical isolation e. communicative isolation
Of what benefit is the metallothionein gene that is inserted into golden rice genome?
A. It supplies extra sulfur to increase iron uptake. B. It increases the vitamin A content. C. It increases the beta-carotene content. D. It increases the iron content. E. All of the choices are correct.