Which major problem for land-based ecosystems would result from global warming?
A) Increased fire danger would result in northern United States and Canada.
B) The excess CO2 could be lethal.
C) A rise in sea levels would drive in competitors.
D) A danger would result for species that cannot migrate in response to habitat change.
Answer: D
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What are the main causes of biodiversity loss?
A) Habitat destruction, overharvesting, and invasive species B) Invasive species, pollution, and climate change C) Habitat destruction, invasive species, and climate change D) Habitat destruction, overharvesting, invasive species, pollution, and climate change
Nondisjunction may cause
a)trisomy 21. b)Turner syndrome. c)Jacobs syndrome. d)All answers are correct. e)Klinefelter syndrome.
A)_________ is a photoreceptor that is expressed in Rod cells. It binds to (B)_____________.
a. (A) Rhodopsin, (B) 11-cis Retinal b. (A) Rhodopsin, (B) All trans Retinal c. (A) opsin, (B) 11-cis Retinal d. (A) opsin, (B) All trans Retinal
The 16S rRNA gene encodes for a(n)
a. 16S enzyme. b. 16S protein. c. 16S rRNA. d. 8S dimer.