When going from a seated to standing position, the knee undergoes ____
a. flexion
b. extension
c. abduction
d. adduction
e. pronation
ANSWER: b
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A researcher creates a mutant pea plant in which cytokinins are over-expressed and gibberellic acid is under-expressed. What is the most likely phenotype of this mutant pea plant?
A. The pea plant would be shorter with more branches compared to wild-type plants. B. The pea plant would be taller with more branches compared to wild-type plants. C. The pea plant would be shorter with fewer branches compared to wild-type plants. D. The pea plant would be taller with fewer branches compared to wild-type plants.
A plant cell with three sets of chromosomes has a ploidy that is
a. haploid. b. diploid. c. triploid. d. tetraploid. e. hexaploid.
Is this statement true or false? Body cells may inherit three or more of each type of chromosome characteristic of the species, a condition called polyploidy
Indicate whether the statement is true or false
What are the issues around the use of biofuels as an alternative to fossil fuels?
What will be an ideal response?