In the northern Pacific Ocean, sea otters feed on sea urchins and sea stars. Sea urchins feed on kelp, and sea stars feed on mussels. Beginning in the 1700s, sea otters were hunted for their fur and driven nearly to extinction in some areas, resulting in trophic cascades in their communities. When the fur trade ended, sea otter numbers increased and their communities began to recover. When this recovery occurred, which two species would be expected to increase in numbers, and which two species would decrease
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Biology, 22.06.2019 03:50
How are gross production and net production different? a. net production is always greater than gross production. b. net production is always less than gross production. only animals have net production. d. only plants have net production. select the best answer from the choices provided
Answers: 1
Biology, 22.06.2019 12:30
The table presents the average day and night temperatures in five cities. it also reveals whether a city receives substantial rainfall (wet climate) or little rainfall (dry climate). which city’s rocks are likeliest to experience frost wedging, and why? a) city a because the consistently subzero temperature would prevent water from melting b) city b because it is a wet region and the temperature fluctuates around the freezing point c) city c because it receives plenty of rain fall and the weather is moderately cool d) city d because the hot and dry weather would cause rocks to absorb water
Answers: 3
Biology, 22.06.2019 18:20
Ihave a question. diplontic animals usually produce both eggs or sperm which are :
Answers: 1
Biology, 22.06.2019 21:50
Acodon consists of bases and specifies which will be inserted into the polypeptide chain.
Answers: 2
In the northern Pacific Ocean, sea otters feed on sea urchins and sea stars. Sea urchins feed on kel...
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