Earth Day Quiz Animals
Questions: 16 · 10 minutes
1. Researchers confirm that a species survives only in managed care and no longer exists in its natural habitat. Which term best fits its status?
Locally abundant
Ecologically invasive
Naturally domesticated
Extinct in the wild
2. A fishing net unintentionally captures dolphins along with the target fish. What is this accidental capture called?
Bycatch
Habitat succession
Captive propagation
Overgrazing
3. A household wants to make its yard more useful to native bees and butterflies. Which change is most helpful?
Grow diverse native flowers across the seasons and minimize pesticide use
Use broad-spectrum insecticide on a fixed weekly schedule
Replace flowering areas with artificial turf
Plant one ornamental flower that blooms for a few days
4. Introduced rats are eating the eggs of ground-nesting seabirds on an island. Which carefully managed action most directly targets that threat?
Planting more trees across all nesting areas
Relocating marine predators from nearby waters
Feeding the rats away from the nests each season
Removing the invasive rats while monitoring effects on other species
5. An online seller claims that a rare parrot was bred in captivity but provides no origin records. Which choice most reduces the chance of supporting illegal wildlife trade?
Buy it if the bird appears healthy and accustomed to people.
Buy it only if the seller offers a lower price.
Decline unless legal origin and genuine captive breeding can be independently verified.
Accept a photograph of the adult birds as sufficient proof.
6. In conservation usage, what does it most directly mean when a species is described as endangered?
It has disappeared from one local habitat but remains common elsewhere.
It faces a very high risk of extinction in the wild.
It is naturally rare but faces no significant threats.
It is protected from hunting in at least one country.
7. Newly hatched sea turtles on a developed beach crawl toward bright buildings instead of the ocean. Which response best addresses the immediate cause?
Place food near the water to attract the hatchlings
Build higher barriers around every nest
Move adult turtles to a different feeding area
Shield or switch off unnecessary beachfront lighting during hatching season
8. A captive-breeding program increases the number of a rare animal, but the habitat that caused its decline remains badly damaged. What is the central limitation?
Captive-born animals can never reproduce after release.
Released animals may still lack a viable habitat in which to survive.
Larger captive populations remove the need for field research.
Breeding programs automatically reduce all wild genetic diversity.
9. Why can amphibian declines provide an early warning of environmental problems?
Amphibians live only in completely undisturbed habitats.
All amphibians eat the same pollution-sensitive prey.
Their permeable skin and aquatic–terrestrial life cycles can expose them to changes in both environments.
Their populations naturally remain constant unless pollution occurs.
10. After sea otters decline, sea urchins increase and heavily graze a kelp forest. What is the strongest inference from this pattern?
Sea urchins require sea otters in order to reproduce.
Sea otters help protect kelp indirectly by limiting sea urchins.
Kelp is the primary food source of sea otters.
Removing predators always increases ecosystem diversity.
11. What major direct threat has driven conservation concern for pangolins?
Illegal hunting and trade for their scales and meat
Competition with polar bears for food
Capture as agricultural pollinators
Removal of coral reefs used for nesting
12. Why is the loss of sea ice a major concern for polar bears?
They build permanent dens only on floating sea ice.
They depend on sea ice as a platform for reaching and hunting seals.
Sea ice prevents their fur from becoming waterlogged.
Their main plant food grows underneath sea ice.
13. As temperatures warm, a mountain animal shifts uphill. It eventually reaches the summit with no cooler habitat above it. What problem does this illustrate?
A guaranteed increase in available territory
A seasonal migration that always restores the original population
The immediate removal of every competing species
A climate-driven range shift constrained by the mountain's physical limit
14. A community-science project asks volunteers to document a rarely seen animal. Which record would generally be most scientifically useful?
A memory of seeing it several years ago without a date or place
A social-media claim copied from another observer
A clear photo or audio record with the date and location submitted through the project's protocol
A population estimate based on one brief, unrecorded sighting
15. A highway divides a forest population into two small, isolated groups. Which intervention most directly addresses this fragmentation?
Building a vegetated wildlife crossing that reconnects the habitat
Providing additional food beside the highway
Moving both groups into separate fenced areas
Removing predators from both forest sections
16. Two small populations of the same mammal have become genetically isolated. Which measure would most directly support gene flow between them?
Give both populations identical supplemental food
Prevent every individual from leaving its current group
Restore a habitat corridor that allows individuals to move between populations
Replace native vegetation with a single fast-growing crop