B.
Genetic drift is the change in the frequency of an existing gene variant in a population due to random sampling of organisms.
The answer to this question is A. Axial precession.
Ans. (D). community.
In an ecosystem, a community can be defined as a association or group of organisms of two or more species that occupy the same region, in a particular time. For example, grasses, herbivores (such as deer), and carnivores (such as lion represent a community in a grassland ecosystem that affect each other.
As earthworms and robins belong to two different species, they will represent a community in a beech forest ecosystem.
Thus, the correct answer is option (D).
Answer:
it has a short demand but it is in great supply
... is one way of conducting B - informal research about your own career options.
The reason why this is a way of doing an informal assessment of careerr options is because you get to know a basic outline and idea on what are the possible careers that you can expect but in no way does it make you have a good job.
