Consider the following statement: Plants violate one of the major characteristics of life because they are immobile. Do you agree or disagree with this statement? Defend your answer
What will be an ideal response?
Students should disagree with the statement. Plants exhibit subtle movements based on growth (like leaves turning to face the sun, or hydrostatic movement like leaves opening and closing, Venus's-Flytrap, etc.)
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Premature babies that are born as early as ___ weeks after fertilization can survive
A. 22 B. 13 C. 17 D. 27 E. 30
The FtsZ gene in bacteria encodes an ancestral tubulin that is important in binary fission (the mechanism of cell division in prokaryotes). To study the FtsZ gene in eukaryotes, researchers made an FtsZ knockout in the moss What is true about this knockout plant?
A. The knockout plant is heterozygous for an abnormal FtsZ gene. B. The knockout plant does not produce any normal FtsZ protein. C. The knockout plant contains a copy of the bacterial FtsZ gene. D. The knockout plant makes bacterial FtsZ protein. E. The knockout plant makes half the normal amount of FtsZ protein.
The study of the body structures of the ostrich, emu and rhea shown here is an example of ____
a. morphological divergence b. comparative morphology c. anatomical convergence d. biogeography e. radiometric dating
Neurons and other cells that produce action
potentials are said to show a. passive transport. b. saltatory conduction. c. excitability. d. capacitance. e. facilitated transport.