Multiple Choice
Biofuels are mainly produced by
A) the breakdown of cell wall biopolymers into sugars that can be fermented.
B) plants that convert hemicellulose into gasoline.
C) the genetic engineering of ethanol-generating genes into plants.
D) transgenic crops that have cell walls containing ethylene.
Correct Answer:

Verified
Correct Answer:
Verified
Q43: Which of the following is the correct
Q44: The embryo of a grass seed is
Q45: Callus is a group of<br>A)ground tissue.<br>B)vascular tissue.<br>C)meristematic
Q46: A fruit that develops from many separate
Q47: The following questions refer to the diagram
Q49: During the process of evolution of an
Q50: Some dioecious species have the XY genotype
Q51: Which of the following plants is correctly
Q52: Which of the following best describes the
Q53: A fruit develops from an<br>A)ovum.<br>B)embryo.<br>C)ovule.<br>D)ovary.