Cycles
A puddle disappears on a warm day. What process?
Evaporation
Rain has a pH of 5.2. Safe or concerning?
Concerning
Bare rock has no soil. Which succession is this?
Primary succession
A beetle is released to eat a plant pest. What method is this?
Biological control
A species disappears from Alberta but survives elsewhere.
Extirpated
Water droplets form on a cold bottle. What process?
Condensation
Mercury slowly builds inside a fish. What process?
Bioaccumulation
A forest grows back after a fire while soil remains.
Secondary succession
Forest is cleared and cowbirds increase. What habitat increased?
Open land / farmland
A species disappears everywhere on Earth.
Extinct
Water leaves plant leaves and enters the air.
Transpiration
A bird eats many contaminated fish and gets a higher toxin level.
Biomagnification
Lichens and mosses appear first on bare rock. What are they called?
Pioneer species
Zebra mussels reached the Great Lakes mainly through what?
Ballast water
Animals are hunted faster than they reproduce. What factor?
Over-exploitation
Thousands of trees are removed. Which atmospheric gas is most likely to increase?
CO2
In algae → insect → fish → eagle, which organism likely has the most toxin?
Eagle
Dead lichens collect in rock cracks. What are they helping create?
Soil
A pesticide kills bees along with crop pests. What are the bees?
Non-target species
New houses replace an animal's nesting area. What threat is this?
Habitat loss
A city replaces grass with pavement. After rain, what will increase?
Runoff
A pesticide kills ladybugs that normally eat pests. What may happen to the pest population?
Increase
A jack pine cone opens after a forest fire. What will this trigger?
Seed release
A new species has few predators and spreads rapidly. What may it become?
Invasive species
An endangered species is declining because of a new invasive species. What should a recovery plan identify first?
The threat