COPY: Science Olympiad Ecology Basics

Succession starting with no soil

Succession starting with soil but no vegetation

<p>When a species has no more living members</p> Signup and view all the answers

<p>The differential survival and reproduction of organisms with genetic characteristics that enable them to better utilize environmental resources</p> Signup and view all the answers

<p>A type of natural selection in which genetic diversity decreases as the population stabilizes on a particular trait</p> Signup and view all the answers

<p>Disruptive selection is a type of natural selection that simultaneously favors individuals at both extremes of the distribution</p> Signup and view all the answers

<p>Directional selection occurs when natural selection favors a single allele and allele frequency continuously shifts in one direction</p> Signup and view all the answers

<p>The process in which breeders choose the traits they want</p> Signup and view all the answers

<p>A factor that limits a population's growth; i.e. resources, shelter, food, and disease</p> Signup and view all the answers

<p>The number and variety of organisms within one region (biome)</p> Signup and view all the answers

<p>Primary Succession = Succession starting with no soil Secondary Succession = Succession starting with soil but no vegetation</p> Signup and view all the answers

<p>Occurs when the growth rate remains the same while the population grows. It creates a J-shaped curve</p> Signup and view all the answers

<p>Occurs when the growth rate decreases as the population grows due to density-dependent factors</p> Signup and view all the answers

<p>When heat is trapped in the atmosphere due to greenhouse gases and Earth is warmed</p> Signup and view all the answers

<p>A species that has moved into an area and reproduced so aggressively that it has replaced some of the original species</p> Signup and view all the answers

<p>Rainfall made sufficiently acidic by atmospheric pollution</p> Signup and view all the answers

<p>Living components of an ecosystem</p> Signup and view all the answers

<p>The study of how populations interact with their environment</p> Signup and view all the answers

<p>Maximum number of individuals of a species or population a given environment can sustain</p> Signup and view all the answers

<p>P(t) = P(initial)e^(rt)</p> Signup and view all the answers

<p>All who use the same resource can't coexist</p> Signup and view all the answers

<p>An organism's role in an ecosystem, including diet and reproductive method</p> Signup and view all the answers

<p>Process in which an existing community is gradually replaced by another community</p> Signup and view all the answers