How can harmful invasive species disrupt ecosystems? Provide an example.
What will be an ideal response?
Harmful invasive species can crowd out native species that may lead to health problems and economic losses. Invasive species can also out-compete native species for resources or prey on native species. Examples will vary.
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What evidence from the map and stereogram suggests that further volcanic activity took place inside the caldera after the final collapse of the volcano? Be as specific as you can.
The question is based on Map T-2, the “Umnak, Alaska,” topographic map (scale 1:250,000; contour interval 200 feet), Map T-21b, a satellite image; and Figures 35-3 and 35-4, a shaded relief map and a stereogram showing the Okmok Caldera (53°25'33"N, 168°07'38"W) on Umnak Island in the Aleutian Islands. What will be an ideal response?
Oxygen enters seawater mainly through the oxidation of metal ions in seawater
Indicate whether the statement is true or false
The area necessary to maintain all different patch types and populations of their associated species, given the typical patterns of disturbance, is defined as the ________
A) secondary growth B) old-growth area C) establishment stage D) minimum dynamic area E) primary growth
the ______ describes the process in which this dominant greenhouse gas circulates among earths systems
What will be an ideal response?