A botanist has found that the giant saguaro, Carnegiea gigantea, lives in the Sonoran Desert below the freeze line and in some very dry regions (such as Yuma) to the eastern edge of Arizona. She has described the ________ of saguaro
A) vital resource B) habitat C) resource spectrum D) resource band
Answer: B
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The difference in mode of inheritance between Huntington disease and cystic fibrosis is that
A) Huntington disease skips generations and only affects children, whereas cystic fibrosis can strike at any age and never skips generations. B) Huntington disease does not skip generations but cystic fibrosis can. C) A person with Huntington disease can have unaffected parents, but a person with cystic fibrosis must have an affected parent. D) Huntington disease affects females and cystic fibrosis affects males.
The maximum life expectancy for a patient with cystic fibrosis is approximately
a. 15 years. b. 20 years. c. 25 years. d. 30 years. e. 50 years.
Beckwith-Wiedemann syndrome results from abnormalities of ____________________. Fill in the blank(s) with the appropriate word(s)
The processes of transcription and translation are collectively known as
A. gene duplication. B. RNA processing. C. protein synthesis. D. gene expression. E. DNA synthesis.