If a invasive species were to intervene in the food web then it would break the web because it if were to kill the species it attacked then the web would be broken and a native species might also do the same.
Answer:
the layer at the bottom of the glass
Explanation:
because the last layer consists with so much energy so all the force is in the last layer.
Hi if it is wrong am sorry I tried but if it is right then am happy to help.
Answer: B C D
Explanation: it’s the food chain, and predators eat prey! In this case the smaller one!!!
Answer: 0.69 m/ mile.
Explanation:
The altitude gradient between two cities X and Y = 
Given: Two cities are separated by 200 miles.
City X has an altitude of 122 meters.
City Y has an altitude of 260 meters.
The altitude gradient between two cities X and Y =

Hence, the altitude gradient between the two cites = 0.69 m/ mile.