Which of the following is a true statement about invasive species?
They are beneficial to the ecosystem.
Only invasive plant species harm ecosystems.
Both invasive plant and animal species harm ecosystems.
Invasive species have no effect on an ecosystem.
In Yellowstone National Park’s ecosystem, there was a lack of wolves. The result was an increased
population of deer and elk. Which scenario was the most likely result of the increased deer population?
The deer and elk led to better hunting in Yellowstone.
The deer and elk protected other prey species in Yellowstone.
The deer and elk depleted the trees and grass in Yellowstone.
The deer and elk became the apex predators in Yellowstone.
Which of the following organisms would be the apex predator?
a field mouse
When organisms move out of a population, this is called
Based on the graph below, the amount of carbon dioxide in the atmosphere has increased. It leads to global warming. What would be an environmental cause of the rise in carbon dioxide?
more cars on the road