When guard cells swell, _____
a. transpiration ceases c. a stoma opens
b. sugars enter phloem d. root cells die
C
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The good thing about conventional oil and gas energy production and distribution is that they are protected against global climate change
Indicate whether this statement is true or false.
Complete ____ reduces competition among insects within the same species; larval forms do not compete with adults
for food or habitats. a. mobilization b. reproductions c. differentiation d. morphogenisis e. metamorphosis
The genetic recombination of ________ caused massive, widespread epidemics that affected the global human population several times in the twentieth century
A) human and bacterial plasmids B) HIV and flu viruses C) bacterial and viral plasmids D) bird flu viruses and human flu viruses
The area within a gene that is not translated into protein is called a(n):
A) allele. B) intron. C) base. D) codon. E) locus.