The reason why dwarf pea plants are shorter is because
a. an enzyme involved in gibberellin hormone synthesis is missing.
b. the plants completely stop growing shortly after sprouting.
c. they cannot make any gibberellin hormone.
d. they produce very little gibberellin hormone.
e. they produce an excess of gibberellin hormone.
D
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Most of Europe is in the ______ biome.
A. high mountain B. taiga C. temperate deciduous forest D. tundra E. None of the choices are correct.
The carrying capacity of an area is determined by
A. food, temperature, and diseases. B. diseases, predators, and space. C. light, diseases, and the season of the year. D. All of these answers are true.
Deforestation decreases the levels of greenhouse gases in the atmosphere
Indicate whether the statement is true or false
Which of the following is required for transposition?
A) F+ plasmid B) bacteriophage C) insertion sequence D) donor cell E) competence