primary succession
Which of the following is an example of primary succession?
Plant communities are established in a lifeless environment, usually devoid of soil
Which of the following is the most accurate example of secondary succession?
Following the Dust Bowl of the 1930's, prairie grasses reestablished themselves in areas had lost most of their fertile soil to wind erosion.
Which of the following in NOT an example of a symbiotic relationship
A mother bear caring for her cub
In what state is Mount St. Helens located
Washington
Example of Mutualism
Zooxanthelae and corals
Caterpillar and ants
Which of the following provides the most accurate example of primary succession?
Lichens re-establish themselves on rocks and shallow soil beds following a tundra fire
A glacier has just receded across the landscape. As the glacier retreated, it completely decimated all standing vegetation. The landscape recovers quickly because there are plenty of seeds left in the seed bank. What is this an example of?
Secondary succession
When a symbiotic relationship benefits both organisms, it is an example of
Mutualism
What year did the large eruption at Mount St. Helens occur
1980
Example of Commensalism
Sponge moving water and filter feeders who eat left over food that the sponge didn't filter.
Which of the following is a structural change in a community and its nonliving environment over time that alters the ecosystem?
Succession
what might trigger secondary succession
fire
How does a crocodile benefit from a bird eating from its mouth?
It gets its teeth cleaned
True or False: Geologists had no idea that the mountain was going to erupt
FALSE
Example of Amensalism
Moles digging in yard and a horses hoof getting stuck in the holes
Which of the following would NOT contribute significantly to primary succession?
Wind-carried soil particles and nutrients
whis is faster primary or secondary succession
secondary
How do people benefit from bacteria in their intestines
The bacteria allows humans to eat a wider variety of foods
Which side of the mountain collapsed at the start of the eruption
North
Example of Predation
A bear searching for samon
A cat eating rabbit
Which of the following are least likely to be present during primary succession?
Trees
how long does succession take
near 50 years
When a symbiotic relationship helps one organism and hurts the other it is an example of
Parasitism
What mountain range is Mount St. Helens a part of
Cascade Mountain Range
Example of Neutralism
Plants and a honey badger
Nyala as browsers and gazelles as grazers