The condition in which shoot apical meristems suppress the growth of axillary buds is called ____________
A. repression
B. apical dominance
C. shoot-root ratio
D. optimum growth pattern
E. primary growth
B
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What is the target of anthrax protective antigen (PA), edema factor, and lethal factor?
A. Endothelial cells lining the capillaries B. Cells lining the alveoli in the lungs C. Macrophages D. Neurons
CO2 and H2O will not form glucose on their
own because a. CO2 does not contain sufficient energy. b. H2O does not contain sufficient energy. c. neither CO2 nor H2O contain sufficient energy. d. the concentration of CO2 is too low in the atmosphere. e. the bonds of CO2 and H2O are too stable to be broken without an input of energy.
A physician reports to you the lab results in identifying your genetic condition relating to your skin health. "DNA fingerprint" information indicates that you have two different versions of the allele for a particular skin protein, and this is called
a. heterozygous. b. homozygous. c. dominant. d. homologous. e. recessive.
The loss of ________ that occurs at each trophic level places a limit on how many top-level carnivores a community can support.
A. CO2 B. water C. light D. O2 E. energy