Semester One Final (Science) Flashcards
A lava flow that travels down a forested mountainside, felling and burning the trees
Disturbance
A positive species interaction must be good for who?
At least one of the species involved
The building of roads most immediately results in what?
Habitat fragmentation
Which sub field of ecology is most related to the management of Earth’s natural resources?
Ecosystem ecology
Which biome has large amounts of precipitation, a stable yearlong climate, and high biodiversity?
Tropical rainforests
Which entity is the biggest driving force of energy-dependent processes in Earth’s ecosystems?
The sun
True or false? “The set of alleles that cause a particular jaguar to have pure black fur” is an example of a genotype
True
Which field of study incorporates subjects as disparate as geology and philosophy?
Environmental studies
What is an estuary?
Where a river enters an ocean
What is an example of the first law of thermodynamics?
A snake eats an entire rat, but gains energy and grows
Which term refers to the levels of biomass an ecosystem generates?
Production
Which hypothesis states that the larger a region is, the greater biodiversity it should have?
The geographic area hypothesis
What is permafrost?
A layer of soil under the surface of a tundra that remains perpetually frozen
Which term describes the process during which organisms break down organic matter into simple nutrients?
Decomposition
True or false? “The polar regions of the planet have lower biodiversity than the equatorial regions”
True
How does nitrogen enter cycles in terrestrial ecosystems?
Bacteria fix nitrogen so plants can use it
What is one example of a primary producer?
A tulip
True or false? “Ecological ecosystems are made up of only one species”
False
What would most likely happen to a lion population in response to an increase of the size of a population of antelope on which it preys?
The lion population would increase in size
What is an example of a biotic invasion?
A species enters a region to which it is not indigenous