The mechanisms of evolution allow evolutionism to be explained according to the scientific method. Through the mechanisms of evolution we can understand how the equilibrium in a population is changed and the consequences that this change causes.
The most important mechanisms of evolution include:
- Trial and error: It is the simplest of all methods of evolutionism; in principle it is typical of microorganisms with a lot of progeny in each generation and relies on the later mechanism of natural selection.
- Natural Selection: In the strict and exclusive sense, it would act as the only method of effective evolution, since random modifications alone would not achieve the observed evolution of living beings. Assuming the randomness of modifications, the earlier trial and error method would be more general than natural selection, since it does not always operate. Natural selection is characterized as a method of verification exogenous to the evolutionary system itself or the system of creation of genetic modifications, as it acts “a posteriori”.
- Exhaustive proof or simulation: Of the results predicted by the genetic modifications made. In certain cases, living organisms may prove the effect of replacing, for example, one protein with another, if the evidence is satisfactory with respect to the functionality of the new mechanism of evolution; and there is no risk of having side effects on suppression of the first protein, genetic modification could be carried out without major problems as the guarantee objective would be fully covered.
- Partial Proof of Modifications: When an evolutionary system is complicated and contains many interrelationships, exhaustive proof of the effects of a small modification will not be possible and will have to be limited to more or less extensive but not total proof. To the extent that the range of possible effects of genetic modification has been covered, it will carry greater or lesser risk. The risks of this method are very well known to computer programmers.
Answer:
d) It is beneficial to the whole species, but not to all of the individual members.
Explanation:
This form of behavior raises the fitness of all the species at the expenses of each member.
Each member of the species performs altruistic behavior towards the queen and her progenies as it assist in creating of her nest to increase their generation numbers. Take for example, The workers do more of nurturing of the queen offspring instead of laying their own eggs. This altruistic behavior of workers promotes the further population of their species at the expense of them producing their own offsprings.
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Here is the complete question:
Some species of wasps are social. The queen starts a colony from scratch each spring. She builds a small nest, and lays and raises a group of female workers. The workers enlarge the nest while the queen continues to lay eggs. Unfertilized eggs become males that mate with newly hatched females. All of the wasps except the newly fertilized females die by the summer.
Which best describes this behavior?
a)It is beneficial only to the males that do not fertilize eggs.
b)It is beneficial only to the female workers that are not fertilized.
c)It is beneficial to each one of the individual colony members.
d)It is beneficial to the whole species, but not to all of the individual members.
Some alternatives to develop tourism in Coron are:
- Improve local infrastructure
- Greater investment in the tourism sector
The island of Coron is located in the Philippines, making it an ideal location for ecotourism, with an emphasis on dives to view wrecks from World War II.
Therefore, to promote tourism in this region, there must be investment in the sector, where there is an ideal infrastructure to receive travelers with safety and quality.
It is also important to train workers to welcome travelers and also to develop a tourism development plan that will generate greater publicity and knowledge of Coron's sights.
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brainly.com/question/12166763
Correct question: A fast swimming strong body fish such as a <u>salmon</u> which is adapted to clear fast and strong water current would most likely be found in which aquatic zone? Options in the attached file
Answer:
Source of a river zone
Explanation:
The fishes body is directly correlated with their environment and the pressures they receive from it. Those animals that are used to living in clear waters, with fast currents must be very strong, must have a hydrodynamic torpedo-like body and big and strong caudal fin to propel against the currents. These animals are used to living in water masses such as the source of a river zone.
Rivers belong to lotic environments, characterized by constant moving water.
- Profundal zone: Sunlight can not reach this zone, so there are no plants. The Water movement is very limited, and in most cases, water is not clear.
- Littoral zone: Is the transition zone, near the shore, where the light easily reaches the bottom. Usually, there is plenty of vegetation fixated to the bottom.
- Wetland zone: In general these are calm water, very rich in diversity, and a proper breeding area for a wide variety of fish.
- Source of a River zone: Rivers flow from higher to lower areas. They originate at the top of the mountains and fastly descend to finally end in a lake or in the sea.
Some species of salmons characterize by living in the sea during sexual maturity, but whenever they need to breed, they go back to the area where they were born. This is in sweet water. They swim in the river until they reach the place where they are going to oviposit. In order to do this, they need to swim against the current. Many times, females die trying to reach this special place.
