The term applied to a morphogenetic process whereby cells extend themselves, making the mass of the cells narrower and wider, is _____
A) convergent extension
B) induction
C) elongational streaming
D) bi-axial elongation
A
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Large zooplankton decrease the ecosystem's main productivity when they are abundant
Indicate whether the statement is true or false.
Paired lungs are characteristic of
a. some fishes. b. all amphibians. c. all birds. d. all mammals. e. all of these.
Which of the following is true about Bergey's Manual?
A. The first edition is largely phylogenetic while the second edition is more phenetic. B. The first and second editions are both largely phylogenetic. C. The first and second editions are both largely phenetic. D. The first edition is mostly phenetic while the second edition is more phylogenetic.
What are the monomer "building blocks" that make up proteins?
A) monosaccharides B) glycerol molecules C) amino acids D) fatty acids