27. which statement best describes enzymes? 1) they slow down the rate of breathing 2) they are the building blocks of polymors. 3) they speed up the conducton of impulsos along a norve celi. 4) they influence the rate of chemical reactions.

At which location in earth’s interior does the top density continue to increase as thickness decreases?

The pacific plate is an oceanic tectonic plate. how did a hot and the pacific plate interact to form the hawaiian islands?

What is one affect on the australian environment due to the introduction of non-native european rabbits? (a) more grass grew in response to the need of the growing population of rabbits. (b) the rabbits balance out the food chain as they became a natural prey to many predators. (c) the rabbits the land by digging, which caused the soil to spread much needed nutrients. (d) the rabbits out-competed other small animals species and caused them to go extinct.