1) What is the effect of this organism on the ecosystem’s current food web? 2)Is this organism affecting the lives of humans?
3) How is it affecting the lives of humans?
4) What are some ways to prevent the spread of zebra mussels?

30 Ponits And Brainlets please Help Here An answer so you can see the example

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.

all eukaryotic cell have mitochondria : )

answer : third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

explanation :

let us write down the given equations

equation 1 :

equation 2 :

equation 3 :

let us use hess's law to find out which 2 equations can be added to get the third equation.

let us reverse equation 2 and multiply it by 2. the new equation that we get is,

equation 4 :

let us add equation 1 & 4

the above equation is similar to equation 3 but has different value for dhrxn.

therefore third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol