B) Forming an island
(constructive means to build, create, or advance)
To ensure that the drinking
water for the public is safe, the Safe Drinking Water Act (SDWA) is
promulgated. The EPA is required to set standards for drinking water quality
and oversee all states in the area are implementing these standards.
Epistasis is the phenomenon where one pair of gene interacts
with a second pair to control its expression by masking, suppressing or
modifying it. <span>The
term meant that a different gene masks the phenotypic effect of another gene. Moreover,
epistasis has a large influence on the evolution of phenotypic traits. </span>
Insufficient nutrient, lack of water, no sunlight, climate change, pollution
Capture-mark-recapture method is a technique commonly used to measure the size of a population. When using this technique, a number of individuals in a certain natural population are marked, returned to that population, and some of them are eventually recaptured as a basis for estimating the size of the population at the period of marking and release.
Advantages of the capture-mark-recapture method include; it is relatively costly, reliable, and its accuracy does not depend on the evaluation of the amount of habitat.
Disadvantages of the capture-mark-recapture method include; its accuracy depend on capturing a large proportion of the population, and marking of animals can have a dramatic effect on the animals.
