Which of the following is likely to be affected by a growing human population?
Humans' need for more space leads to
In some communities, forests are cleared through burning, and the deforested land is used for farming. Which of these is a negative consequence of this practice?
Deer are introduced into a grassland ecosystem and their population increases considerably. If the deer population continues to grow, which is the MOST likely outcome for the ecosystem?
Which of these is a threat to the survival of an ecosystem?
Why is a reduction in biodiversity due to loss of plant populations especially destructive to an ecosystem?
Which of these explains why an
ecosystem is healthy when it has a variety of species?
Which of these living things in a grassland ecosystem depend on the presence of a variety of bacteria and other microorganisms in the soil?
Which change in the environment would have a negative effect on the survival of a species in an ecosystem?
New Zealand is home to many flightless birds, such as the kiwi, which build their nests on the ground. Over time, ground predators such as possums have been introduced. Which statement could be a possible effect on the kiwi?
Soil erosion can increase when humans remove trees and other vegetation from an area. What is this process called?
Changes to an ecosystem's biodiversity can have a direct effect on humans because humans-
A reduction in the variety of pollinating insects would negatively affect the plant populations that depend on them. Which of the following describes the most serious impact this would have on humans?
Introducing non-native species can