What does a cell of prokaryotic type lack that differentiates it from a cell of eukaryotic type?
a. a plasma membrane
b. a nucleus
c. DNA
d. chromosomes
Ans: b. a nucleus
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As the RNA polymerase moves along the DNA strand during transcription it will move from the ________ direction. a. 5' to 3' b. The direction of movement is completely random
c. 3' to 3' d. 5' to 5' e. 3' to 5'
Compare and contrast how invertebrates with a hydrostatic skeleton (earthworm) and an exoskeleton (fly) move
What will be an ideal response?
Refer to the accompanying figure. The line on the graph labeled C represents the ____
a. change in entropy. b. change in enthalpy. c. change in free energy. d. activation energy with an enzyme. e. activation energy without an enzyme.
Select the statements that provide direct biogeographical evidence for evolutionary theory. Check all that apply.A) Unrelated organisms from similar habitats exhibit similar characters.B) Terrestrial mammals are not found naturally on any island greater than 300 miles from a mainland.C) Organisms on islands are most similar to organisms on the nearby mainland, even when habitats on the mainland and island are quite different.D) Invasive rats have colonized more than 80% of the world's islands.
What will be an ideal response?