If humans remove carnivores such as wolves and coyotes from an ecosystem what will probably be the first noticeable result?

Which geologic feature would most likely be represented by contour lines john far apart from one another? a cliff a hill a plain a valley

In which case would a scientist choose to use a dissecting microscope rather than a compound microscope

Johnny rode his bike 4 blicks down the street to his friend's house once he got to his friend house and realized he could not cone out to play he turned aroubd and went back home.what is displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point