Zebra mussels were introduced into the great lakes region in the 1960s. they are not a native species and they spread quickly throughout the area. zebra mussels attach to other species of mussels and often kill them. they also use up resources that native mussel species depend on for survival. as a result, zebra mussels have almost completely gotten rid of native mussels in the great lakes region.

based on the table below, what type of interaction do the zebra mussels have with the native mussels?
organismal function a bodily function, such as heart rate or body temperature, that affects an individual organism
population interaction an interaction between members of the same species, such as mating
community interaction an interaction between members of different species, such as predator/prey interactions or competition between two or more different species
ecosystem interaction an interaction between the biotic and abiotic factors of an ecosystem, such as a drought killing many different plant and animal species in an area

Ok i am attempting to my niece attach a galvanized wire (like a tether for a dog) at the corner of two fences, making a tightwire if you will and we drilled a hole in a softball and she hits it. the ? and problem is that we can not get the wire taunt enough where it doesnt sag after hitting the ball once, and the wire sags and wobbbles. its a 15 ft rubber covered galvanized wire and one can adjust the length of the placing of the wire by having it make the corner of 2 fences become a it can be adjusted, however, with all our human strength and pliers we could not make it taunt as possible. is there anything other that attaching it to a car to do this. sorry abt the length but it would mean the world to my niece if i could solve this came up with the entire idea herself, and she is 14 and paid for the wire and did as much work as i did drilling a hole through a softball wide enough for attaching piece at each end of the wire that clips on to the fence. . any ideas welcome if serious. but awesome if it is a fact. much obliged. bucky bukowski buckman

If it takes a planet 2.8 x 10^8 s to orbit a star with a mass of 6.2 x 10^30 kg what is the average distance between the planet and the star

Describe uniform velocity and variable velocity in short