Answer:
It's an alarming situation about the decline of commercial fish population and we must need to develop the policy solution to this dangerous fisheries problem.
We can develop more fish by fish hatcheries to increase the population of fish and release large number of fish into the ocean.
We should give the awareness to the general public related to decrease the recreational fishing impact.
Commercial fishing must be ban until we reaches the sustainable level of fish.
There must be place international limits to every country related to limited number of fish they can take.
Answer:
Trophic cascade is defined as an ecological phenomenon triggered by the addition or removal of top predators and involving reciprocal changes in a relative population of predators and prey through food chain, which often results in dramatic changes in the ecosystem structure and nutrients cycling.
Explanation:
An example was the removal of wolves in Eastern North America which was associated with an increase in white tailed deer and a decline in plants eaten by the deer.
In danger, they cannot fly for a longer time unlike the other birds. Their long,heavy tails make it a bit difficult. However their flight lasts for some seconds .
These are examples of homologous structures. Homologous structures are similar because they are inherited from a common ancestor, they are examples of organs or structures that appears in different animals, underlining anatomical commonalities which is evident that they have a common ancestor. Analogous structures on the other hand are structures that are similar in unrelated organs.
