An ecosystem ________
A) encompasses all the organisms and the physical and chemical environment within an area
B) is a grouping of plants and animals that interacts with one another in a way that causes the grouping to die
C) is a regional grouping of plants, animals and other biotic factors
D) is the total population of a specific kind of plant, animal or microbe and all members of which do or potentially can interbreed and produce young
E) is a collection of interacting species living in a specific area
A
You might also like to view...
As humans continue to use fossil fuels as a primary source of energy, the amount of carbon entering the atmosphere from fossil fuel combustion will continue to increase dramatically. What is the effect of large-scale deforestation on the carbon in the atmosphere?
a. Because trees are a major sink for atmospheric carbon, fewer trees will result in less carbon being removed from the atmosphere for photosynthesis. b. As trees are removed, there is more room for carbon to enter the soil directly and be used by other plants. c. Because trees produce carbon dioxide, the amount of carbon in the atmosphere will decrease with their wide-scale removal. d. The large-scale removal of forests does not have any real effect on atmospheric carbon, because carbon dioxide is not stored in trees.
Why is silicate the most prevalent mineral in igneous rock?
A) Silicates melt very easily. B) Silicates make up most of the earth's crust. C) Silicate is attracted to heat. D) Silicates are very heavy, so they are perfect for magma.
Which of the following most accurately describes "human capital" in a market system?
A) The skills of the workforce B) The tools, machines, infrastructure, and other built resources that can be used by humans to produce goods and services C) The central location where humans exchange goods and services D) The natural resources used by humans to produce goods and services
Which of the following will have the highest electrical conductivity?
A) 0.1 M NaCl B) 0.2 M NaCl C) 0.3 M NaC2H3O2 D) 0.4 M NaC2H3O2