Ans.
Genetic engineering involves manipulation of genetic material organisms to develop organisms with desirable characteristics. Natural selection involves selection of traits that make organisms better adapted to their surrounding environment, without human interference.
Both of the mechanisms involve transmission of genetic information form one generation to another as manipulated genetic material of parent organism is transmitted to next generation.
Both genetic engineering and natural selection select the traits that are most organisms with most beneficial to their environment.
Genetic engineering is faster than the process of natural selection. Natural selection is natural process and it works over generations, while genetic engineering involves desired modification of traits.
Both genetic engineering and natural selection work on all organisms, including humans.
Natural selection involves selection of individuals with beneficial traits for survival, while other individuals with less useful characteristics are wiped out. Therefore, natural selection does not work on entire population.
Thus, the options 1), 3), and 4) are correct.
Answer:
A tree that possesses scale or needle-like leaves and cones that remains green throughout the year is known as a conifer. Some of the examples of conifers are cedars, junipers, redwoods, pines, etc. These trees have great economic importance as they are the prime sources of turpentine and resins, and are also a great source of softwood.
It is not practical to cultivate the Wollemi pines from their seeds, as the majority of the seeds that fall from the cones of Wollemi are not viable, and their cultivation may even consume many months. The species mentioned is also considered as endangered, therefore, it will not be feasible to cultivate them via the help of seeds.
Answer: Introduced species or exotic species
Explanation:
The introduced species is also called as an exotic species. The exotic species is a species which is not native to a particular location or area but is introduced by humans either accidentally or with the desired species. Such species can be invasive means, it can compete with the native species for resources and can reduce the population of native species.
The given situation is an example of introduction of new species. The weeds are introduced exotic species which could have come along with the desired variety of wheat required for farming in the prairies.
A dog's stomach acid is stronger than ours so they can digest bigger chunks of food unlike us superior humans lol
