The base of the cranium differs in its development from the viscerocranium and the calvaria in that it...
A. develops by endochondral ossification.
B. develops by intramembranous ossification.
C. develops from lateral plate mesoderm.
D. grows much more slowly than the former two structures.
E. is pushed to its final destination after it finishes growing by the growth of the former two structures.
Ans: A. develops by endochondral ossification.
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A subordinate animal in a dominance hierarchy has limited access to food and mates. Why would he
remain in a social group that dominated him?
a. He is exhibiting altruistic behavior. b. His chances of survival and reproduction are better in the group than alone. c. He expects to become dominant in the future. d. He does not know that it would be an advantage for him to leave. e. Dominant group members will not allow him to leave.
Hyaline cartilage covers the ends of long bones and is also located in the growth plate where bones increase in length during childhood and adolescence.
a. true b. false
A ____ mutation results in the conversion of a codon specifying an amino acid to a termination codon
a. nonsense b. frameshift c. chromosomal d. missense e. silent
Euglenozoans have distinctive _____
Fill in the blank(s) with the appropriate word(s).