If the number of polar bear reduced due to the less sea ice coverage, what will be the Arctic ecosystem impacted?[img=631x714]180331808efc09e.png[/img]
A: Top down control, the seal numbers will decrease.
B: Top down control, the benthos will decrease.
C: Top down control, the benthos will increase
D: Bottom up control, the seal will increase.
A: Top down control, the seal numbers will decrease.
B: Top down control, the benthos will decrease.
C: Top down control, the benthos will increase
D: Bottom up control, the seal will increase.
举一反三
- If the size of a tax increases, tax revenue will ( ) A: increase. B: decrease. C: increase, then decrease. D: decrease, then increase.
- An increase in the capital stock causes labor productivity to ( ) A: decrease and the standard of living to increase. B: increase and the standard of living to increase. C: decrease and the standard of living to decrease. D: increase while the standard of living remains constant.
- Companies can scale ( ) as computing needs increase and then scale ( ) again as demands decrease. A: up,down B: down, up C: on,off D: off, on
- Johnson company pays the software company $5,000 with a check that they bought. Which the following statement is true? A: Assets are increase and liabilities are increase. B: Assets are decrease and owner’s equity is decrease. C: Assets are decrease and liabilities are decrease. D: Assets are increase and owner’s equity is increase.
- An increase in the capital stock causes labor productivity to ( ) A: decrease the standard of living to increase. B: increase and the standard of living to increase. C: decrease and the standard of living to decrease.<br/>D<br/>increase while the standard of living remains constant. D: increase while the standard of living remains constant.