I think its salinity because the other things have something to do with tracking precipitation
<span>It may be difficult for ecologists to determine the size of a bird population if that population migrates to different locations throughout the year. During migration, some birds may split off from the group and not return, others may die, and still others may join. Therefore, the bird population will be in constant flux. It is hard to know, when the birds return to their prior location, if the population consists of the same group of birds (in addition to deaths and births) or whether it has grown or shrank through other means. However, to estimate the size, an ecologist can track a migratory flock through several years, counting each year to get a general sense of the population size. Additionally, given one measurement, an ecologist could consider the average lifespan and birth rates of the population to extrapolate the size of the population in subsequent years.</span>
Answer:
The correct answer would be b. Their numbers will soon decrease.
Bobcats are opportunistic carnivores that feed on various types of prey such as mice, rabbits, voles, mountain beaver, gophers, yellow-bellied marmots, insects, birds, reptiles, and carrion.
If a group of Bobcats moves at the bottom of the mountain, then they will start hunting and eating all the prey available in the area.
It will result in the rapid decrease in the population of preys.
The answer is A cuz a food chain starts with solar energy
