<span>Atlantic cod was the mainstay of fisheries based in southeast Canada and New England.for centuries
However, in the early 1990s, a dramatic decline in cod stocks forced fishery managers to close
some of the world's most productive fishing grounds..The case study of the Atlantic Cod as an
illustration of major issues in the management of marine fisheries.The bottom trawl increased landings but
unlike earlier methods, captured many non-target species and disturbed or destroyed bottom habitats. In May of 2003, the Canadian fisheries ministry ordered an end to all Atlantic cod
fishing in three regions off the Newfoundland and Labrador coast In the same year fishing in three regions off the Newfoundland and Labrador coast. In the same year,Newfoundland and Labrador Atlantic cod populations were declared “endangered.”.The establishment of a “200-mile fishing limit”.had been demanded by the domestic fishing industry for years to reduce the
impact of foreign fishing vessels on fish stocks. Recently, it has been suspected that increased herring populations may be inhibiting recovery of cod.  Atlantic herring populations increased after the decline of Atlantic cod in the early 1990s  Herring feed on cod eggs and larvae and therefore, the community may be stuck in a herringâ€dominated system. Earlier attempts to end over fishing and implement
ecosystem-based fishery management have fallen short of the hopes of mostfisheries managers and scientists.</span>
D best describes mutation
Answer:
Student 1’s methods would be more accurate, because the student would control more factors. Only one variable at a time (either temperature or acidity) would be tested on each group of worms. On the other hand, Student 2 is testing both factors on all the worms, which could make the results unclear.
Answer:
When bacteria are exposed to an antibiotic, such as penicillin, they often mutate.
Explanation:
This means that part of their DNA changes, giving the antibiotic resistance to the bacteria.
In this way, the bacteria can generate a copy of their DNA and transmit it to their offspring, giving their resistance.
On other occasions, a resistant bacterium dies from causes unrelated to the antibiotic, leaving its DNA free.
If other bacteria manage to capture that DNA, it will also acquire antibiotic resistance.
Answer:
<u>I. Define the following terms:-</u>
Population ➝ the world population is the total number of humans currently living.
Population density ➝ is a measurement of population per unit area or volume. It is frequently applied to living organisms, most of the time to humans.
Carrying capacity➝ is the average population density or population size of a species in a habitat.
Exponential growth➝ is a process that increases quantity over time. It occurs when the instantaneous rate of change.
Density-independent limiting factor➝ is any force that affects the size of a population of living things.
Logistic Growth ➝ is a population's per capita growth rate stays the same regardless of population size, making the population grow faster as it gets larger.
Density-dependent limiting factor➝ is a limiting factor of a population wherein large, large dense populations are more affected than small, less crowded ones ex. predation, competition, food supply.
<u>II. Enumarate at least three(3) factors that affect population growth.</u>
<u>III. Differentiate exponential growth and logistic growth.</u>
Exponential growth is a growth in population wherein the number of individuals increases. Logistic growth entails exponential growth in population along with a growth rate that is in a constant state. As the population comes to its carrying capacity, the growth rate then decreases significantly.
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