The right option is; the water table
The upper limit of the zone of saturation is called the water table.
Water table is the top level of an underground surface where the rocks or pores of the ground are indelibly saturated with water. The water table removes the zone of aeration that is situated on top of it from the groundwater zone that is situated beneath it. Certain conditions such as amount of precipitation used by plants, climatic differences, and withdrawal of large amounts of water from wells, affect the water table and make it to fluctuate both with the seasons and from year to year.
Answer:
<em>The correct option is D) immigration</em>
Explanation:
Immigration can be described as the movement of an organism to another place for living. As the scenario in the question tells, the population of the endangered Philippine eagle could be seen only in one place hence we can say that the immigration rate of these organisms was zero because they could not be seen in any other place.
Other option, like option B, cannot be correct because mortality refers to the death rate and obviously many organisms of the species died due to which it became endangered.
Answer:
Option B
Explanation:
In biology, fitness refers to the ability of an organism to survive, reproduce, mate and support evolution through gene transfer. A fitness of 0.28 signifies that only 28 percent of a given population are fit physically and able to reproduce while the remaining 72 % are unable to mate and hence cannot reproduce and contribute towards gene flow and evolution.
Hence, option B is correct
Answer: C
Explanation: I took the test