Answer:d.Paleozoic Era
Explanation:
Paleozoic Era is hallmarked by climate, animals & plants.
This Era includes the Ordovician Period, Silurian Period and the Devonian Period.
The Silurian Period is one during this era where aquatic plants and animals evolved.
Harmful because they change how the genes are supposed to form and they can give disorders at times.
Keystone predators can maintain species diversity in a community if they prey on the community's dominant species
Option B is correct.
What is meant by keystone predator?
A keystone species is usually a dominant predator whose removal allows a prey population to explode and often decreases overall diversity. other forms of keystone species are those, like coral or beavers, that significantly alter the habitat around them and thus affect large numbers of other organisms.
Are keystone species always predators?
A keystone species is usually , but not always, a predator. Just some predators can control the distribution and population of large numbers of prey species. the whole concept of keystone species was founded on research surrounding the influence of a marine predator on its environment.
Learn more about keystone predators:
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Answer:
It is the necessity of the living organisms to increase their number in order to maintain the continuity of the species. Reproduction is the process through which one organism give rise to a similar organism of its own kind. It is one of the most important characteristics of the living organism.
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<h3>Please mark me as Brainlist</h3>
<h2>GAC</h2><h3>I'm assuming you're talking about DNA base pairs?</h3>
