FREC EXAM 4 QUESTIONS WITH CORRECT ANSWERS
2025/2026 RATED A+
1. 10% What % of plants we eat are not native to the US?
2. Native focuses on particular region, ecosystem, and habitat
3. Harm negative impact
4. Invasiveness characterized by a change in population over time
5. Invasive Species -causes economic or environmental harm
-causes harm to human health
6. Japanese barber- -I Rank: High/Medium
ry -Ecological Impact: High/Medium
7. Bradford pear -very showy in flower
-very urban tolerant
-hundreds of thousands produced and sold
-the cultivar/clone is self-incompatible/self-infertile
-weak branch structure
-introduction of improved cultivars/clone-trees able to cross pollinate
-aggressively invasive
-seed spread by birds- major ecological invasion
8. Autumn olive -promoted by federal and state agencies
-birds love it
-ecological and overall impact = HIGH
-the perfect storm of invasive plants
9. Cultivars clones with a trait
10. Angiosperms flowering plants
11. Gymnosperms pines, spruces, firs, etc.
1/2
2025/2026 RATED A+
1. 10% What % of plants we eat are not native to the US?
2. Native focuses on particular region, ecosystem, and habitat
3. Harm negative impact
4. Invasiveness characterized by a change in population over time
5. Invasive Species -causes economic or environmental harm
-causes harm to human health
6. Japanese barber- -I Rank: High/Medium
ry -Ecological Impact: High/Medium
7. Bradford pear -very showy in flower
-very urban tolerant
-hundreds of thousands produced and sold
-the cultivar/clone is self-incompatible/self-infertile
-weak branch structure
-introduction of improved cultivars/clone-trees able to cross pollinate
-aggressively invasive
-seed spread by birds- major ecological invasion
8. Autumn olive -promoted by federal and state agencies
-birds love it
-ecological and overall impact = HIGH
-the perfect storm of invasive plants
9. Cultivars clones with a trait
10. Angiosperms flowering plants
11. Gymnosperms pines, spruces, firs, etc.
1/2
