Energy flows through an ecosystem along an idealized unidirectional pathway called a
A) food web.
B) trophic cascade.
C) niche order.
D) food chain.
E) bioamplifier.
D
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Ayak and Leni are both citizens of Peru. Ayak speaks Quechua and Leni speaks Aymara, both languages native to Peru but mutually unintelligible. If Ayak meets Leni they will speak in Spanish, which came with the colonial conquest. Spanish is an example of
A) a lingua franca B) cultural syncretism C) a dialect D) an universal language E) a hybrid language
An object following a straight-line path at constant speed
A) has a net force acting upon it in the direction of motion. B) has zero acceleration. C) must be moving in a vacuum or in the absence of air drag. D) has no forces acting on it. E) none of the above
List two methods used by scientists at the Climate Prediction Center as they prepare long-range forecasts
What will be an ideal response?
In the state of Hawaii, 95% of endangered species are endangered because of invasive species.
Answer the following statement true (T) or false (F)