Scientists have found that the existing populations of a certain species of amphibian are small in number, lacking in genetic diversity, and separated from each other by wide areas of dry land. Which of the following human actions is most likely to improve the long-term survival of the amphibians?
A) Cloning the largest individuals to counteract the effects of aggressive predation
B) Reducing the population size by one-fifth to decrease competition for limited resources
C) Constructing a dam and irrigation system to control flooding
D) Building ponds in the areas of dry land to promote interbreeding between the separated populations
Ans: D) Building ponds in the areas of dry land to promote interbreeding between the separated populations
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a. upstream from the start codon b. upstream from the site for initiation of transcription c. downstream from the stop codon d. the coding region e. downstream from the site for termination of transcription
Several infections of the cardiovascular system can be identified by inspecting a stained blood smear in the microscope. For the following infections, identify the microscope observation that does not fit the disease.
A. Chagas disease; protozoan visible among blood cells B. Malaria; ring trophozoites visible inside red blood cells C. Epstein-Barr virus; virus visible inside red blood cells D. Babesiosis; protozoan visible inside red blood cells
An intron is a section of an RNA that gets spliced out
Indicate whether the statement is true or false
A developer plans to chop down several healthy trees on her property, burn them, and put a huge concrete pad in their place. Why are these activities environmentally unwise?
What will be an ideal response?