PBIO 1000- EXAM 3 QUESTIONS WITH VERIFIED
ANSWERS
phenology - Answers - when flowering occurs in plants based on abiotic factors such as
temperature
Which of these is a supporting ecosystem service provided by Eastern forests and
woodlands? - Answers - habitat for birds
Which of these has been correlated with plants developing earlier each spring in the mid
to late 1900's? - Answers - warmer temperatures
IF-AT #29: What effect has plant cultivation in lower parts of the Chimborazo volcano
had on vegetation? - Answers - the predominant species once found there have
declined
The migration of plants on the Chimborazo volcano was documented and compared
over which time range? - Answers - 1802-2012 (210 years)
Which of these best explains why plants have migrated farther north and to higher
altitudes over the past century? - Answers - warming temperatures due to increases in
greenhouse gases
Which of these organisms has had a harmful effect on trees in deciduous forests? -
Answers - Gypsy Moth
invasive species - Answers - non-native species
What is the overall goal of the Endangered Species Act? - Answers - To protect and
recover species that are endangered.
threatened species - Answers - A species that is likely to become endangered in the
near future.
5 factors to consider before a species is listed - Answers - 1. damage to or destruction
to a species habitat
2. over utilization of the species for commercial, recreational, scientific, or educational
purposes
3. disease
4. inadequacy of existing protection
5. other
5 principle threats to plant biodiversity - Answers - 1. habitat transformation
ANSWERS
phenology - Answers - when flowering occurs in plants based on abiotic factors such as
temperature
Which of these is a supporting ecosystem service provided by Eastern forests and
woodlands? - Answers - habitat for birds
Which of these has been correlated with plants developing earlier each spring in the mid
to late 1900's? - Answers - warmer temperatures
IF-AT #29: What effect has plant cultivation in lower parts of the Chimborazo volcano
had on vegetation? - Answers - the predominant species once found there have
declined
The migration of plants on the Chimborazo volcano was documented and compared
over which time range? - Answers - 1802-2012 (210 years)
Which of these best explains why plants have migrated farther north and to higher
altitudes over the past century? - Answers - warming temperatures due to increases in
greenhouse gases
Which of these organisms has had a harmful effect on trees in deciduous forests? -
Answers - Gypsy Moth
invasive species - Answers - non-native species
What is the overall goal of the Endangered Species Act? - Answers - To protect and
recover species that are endangered.
threatened species - Answers - A species that is likely to become endangered in the
near future.
5 factors to consider before a species is listed - Answers - 1. damage to or destruction
to a species habitat
2. over utilization of the species for commercial, recreational, scientific, or educational
purposes
3. disease
4. inadequacy of existing protection
5. other
5 principle threats to plant biodiversity - Answers - 1. habitat transformation
