Water is a limited resource, despite it being very useful. We still use it very often because there is a bountiful amount of it, but it is not abundant, obviously we have enough to last you and I, but we will eventually run out. If anything, it'll become rarer and increase in price, but I have a feeling we will either find water somewhere else, or die out before then.
A simple leaf blade is undivided as shown on the left (though the margins may be toothed or even lobed). The blade of a compound leaf is divided into several leaflets as shown on the right. ... Each leaf, whether simple or compound, has a bud at its base (on the twig). There are no buds at the base of each leaflet.
<span>A. economics class,hair cut,life insurance
The list obviously contains all services while other choices contain products.</span>
Answer:
Zooplankton help other populations survive by keeping out other herbivores
Explanation:
This is because a keystone species are species that have large effect on the the habitat and through its effect they help to keep the ecosystem in existence. They make sure that the ecosystem exist. They help populations survive by keeping out herbivores and feeding on the algae. They help drive nutrients cycle and transfer energy from algae to invasive fish.