_____ prevents seeds from germinating until conditions are favorable for the growth of the plant
A) Ethylene
B) Zeaxanthin
C) Gibberellin
D) Abscisic acid
D
You might also like to view...
In experiments with laboratory populations of Drosophila melanogaster, Mukai and Burdick (1959 ) observed that a lethal allele maintained a higher than expected frequency
The explanation for this observation is that, at equilibrium, the selective advantage of the lethal allele when it occurs in heterozygotes balances the disadvantage of the allele in homozygotes, and is termed ________. A) equilibrium distribution B) underdominance C) allelic frequency dependence D) overdominance E) terminal dominance
Which lineage includes the tuatara as one of its only two living members?
a. Squamata b. Testudines c. Sphenodontia d. Amphibia
Which statement about fiber is false?
A) The cellulose of celery stalks and lettuce leaves is fiber. B) Fiber passing through the digestive system scrapes the wall of the digestive tract, stimulating mucous secretion, and aiding in the digestion of other molecules. C) Fiber in the diet slows the passage of food through the intestines. D) Humans are unable to extract any caloric value from fiber. E) Dietary fiber reduces the risk of colon cancer.
What is the name of the semi-fluid medium inside the cell?
A. cytoskeleton B. organelle C. nucleolus D. mitochondrion E. cytoplasm