In the early development of an amphibian embryo, an important "organizer" is located in the
A) neural tube.
B) notochord.
C) archenteron roof.
D) dorsal ectoderm.
E) dorsal lip of the blastopore.
Ans: E) dorsal lip of the blastopore.
Biology & Microbiology
You might also like to view...
Language is unique to humans
A. true B. false
Biology & Microbiology
Electrons are shared in bonds that are
a. covalent. b. polar. c. nonpolar. d. covalent, polar, or nonpolar. e. covalent, but not polar or nonpolar.
Biology & Microbiology
During what time of the day would the most hydrogen bonds reform between water molecules in a lake?
A) in the late morning B) at noon C) in the late afternoon D) at night
Biology & Microbiology
A person who cannot make enough of the plasma protein ________ might have problems with water balance
Fill in the blank(s) with correct word
Biology & Microbiology