U8 Science Test Flashcards
What happens last in primary succession?
Climax Community
Of the following elements, _____ is most responsible for global warming.
Carbon
A bird building a nest in a tree is an example of _____.
Commensalism
Bees eat pollen and nectar from flowers, while flowers get help with pollination.
What type of relationship exists between the bee and the flower?
mutualism
In a forest ecosystem, air plants grow on the tops of trees.
Why might they do this?
to be able to reach more light, an abiotic resource
Which type of succession is happening in this lava field picture where no ecosystems have existed before?
Primary
The starfish is a keystone species. Starfish eat mussels that grow in tide pools. Mussels eat most everything in a tide pool.
What might happen in an ecosystem if starfish are removed?
The mussel population would grow, and other species might die out.
How can climate change impact an animal’s behavior?
Polar bears will have to swim farther due to melting ice.
______ a specific way in which an organism interacts with the abiotic and biotic factors within the ecosystem
Niche
Which biome is characterized by the most extreme cold temperature?
Tundra
Organisms of the same species living in the same area make up a(n) __________
Population
A close, long-term relationship between two species in the same community is called
Symbiosis
Through which processes do living organisms return carbon back to the atmosphere?
respiration and decomposition
What happens if a population in an ecosystem increases beyond its carrying capacity?
Population will decrease
_____ _____ the number of a particular species that an ecosystem can support
Carrying Capacity
Adaptations include _____, _______, and ______ changes within a population of species.
Structural, Chemical, and Behavioral
What can be used to preserve endangered plant and animal species?
zoos and seed banks
It is better to _____ the amount of stuff one buys or uses than to buy more and recycle.
Reduce
_____ preserves habitats for plants and animals.
National Park Service
Which type of animal is more likely to survive an ecosystem change?
one that is adapted to eat many different types of plants
