Fragmentation
the worms break apart and each part grows a new head or tail by regeneration.
Answer: The member of two different species possess similar looking structure that in a similar way perform same function is homology.
Explanation: The term homology describes shared ancestry pair of structures. For example, apes and dogs are different and the arms of ape and forelegs of a dog are derived from ancestry tetrapod structure that perform similar function like aiding locomotion.
They eat rodents and are eaten by owls and hawks
They are important because without them, the rodent population could become too numerous. Rodents like to chew on tree roots and other plants for nutrients, but this kills the plant. Too many rodents can cause a mass imbalance leading to the death of hundreds of other animals
<span>because “Barrow is ground zero for climate-change science, and because we worry that climate change is shrinking the sea ice and we don’t know how that will affect the animals that depend on it. But at this time there is no effective plan if a catastrophe such as a ship collision or oil spill occurs. The Coast Guard hasn’t decided what its presence will be in the Arctic. Someone needs to monitor whats going on there.</span>