BIOL 355 B0: Ecology - Dr. Larson Exam #2 Version A Spring 2026
Follow these DIRECTIONS for full credit:
1. Fill out the Gradescope Bubble Sheet with:
a. Your full name
b. Your B-Number next to ID
c. Version A or B. You can find your version at the top of this page.
d. Your Discussion Section next to Section
2. Write your full name and B-Number on this exam packet.
3. Fill in the appropriate answer on the Bubble Sheet for all multiple choice questions, and answer the short answer
questions completely.
4. After the exam, read and sign the statement and turn in both the answer sheet and exam booklet.
By signing below, acknowledge that I have not violated Binghamton University's academic honesty policy. I give my word
that I have neither cheated on this exam, nor have I knowingly allowed any other person to cheat on this exam.
NAME__________________________________________ Section: __________________
B#________________________________
Signature____________________________________
Exam directions:
There are 50 questions on the exam (100 points total). Alert proctors if there are missing pages. Always read all
answer choices carefully before choosing the best answer based on Biol 355 B0 course material.
Study-prep note: This is an original practice version formatted to match the provided sample for exam preparation.
1. Which of the following statements about general life-history tradeoffs is/are TRUE?
I. High fecundity and rapid maturity often occur with lower parental investment.
II. High survivorship and slower growth often occur with greater investment per offspring.
III. Every organism can maximize fecundity, growth, and survival at the same time.
IV. Energy used for reproduction cannot also be used for maintenance and growth.
a. I and III
*b. I, II, and IV
c. II and III
d. III and IV
2. Which of the following is NOT normally treated as a core characteristic of population distribution?
a. Geographic range
b. Abundance
c. Dispersion pattern
*d. Petal color
1
, 3. A shrub introduced to coastal dunes grows best on sandy soils with high sun and mild winters. A researcher maps
regions with similar climate and soil conditions to predict where it may spread. Which tool is being applied?
*a. Ecological niche modeling
b. Random quadrat sampling
c. Primary succession
d. Mark-recapture estimation
4. Which observation best illustrates a uniform dispersion pattern?
a. Aphids clustering on the newest leaves of a plant
b. Mushrooms appearing in patches near decaying logs
*c. Nesting seabirds maintaining evenly spaced territories
d. Wildflowers scattered with no visible pattern
5. Which observation best illustrates random dispersion?
*a. Barnacles attached wherever larvae settle on a broad rock face
b. Wolves defending territories of similar size
c. Termites concentrated in a single fallen log
d. Fish schooling tightly when a predator appears
6. Which statement about the geographic range of a species is FALSE?
a. Range boundaries can shift when climate changes.
b. Local abundance is often lower near range edges.
*c. A species always has equal density throughout its entire range.
d. Dispersal limits may restrict a species from otherwise suitable habitat.
7. A survivorship curve for humans in many developed countries is closest to which type?
*a. Type I
b. Type II
c. Type III
d. Type IV
8. Which organism is most likely to show a Type III survivorship pattern?
a. Human
b. Elephant
*c. Oak tree
d. Small songbird with constant adult mortality
9. A population has a per capita birth rate of 0.35 and a per capita death rate of 0.20. What is r?
*a. 0.15
b. 0.55
c. -0.15
d. 1.75
2
Follow these DIRECTIONS for full credit:
1. Fill out the Gradescope Bubble Sheet with:
a. Your full name
b. Your B-Number next to ID
c. Version A or B. You can find your version at the top of this page.
d. Your Discussion Section next to Section
2. Write your full name and B-Number on this exam packet.
3. Fill in the appropriate answer on the Bubble Sheet for all multiple choice questions, and answer the short answer
questions completely.
4. After the exam, read and sign the statement and turn in both the answer sheet and exam booklet.
By signing below, acknowledge that I have not violated Binghamton University's academic honesty policy. I give my word
that I have neither cheated on this exam, nor have I knowingly allowed any other person to cheat on this exam.
NAME__________________________________________ Section: __________________
B#________________________________
Signature____________________________________
Exam directions:
There are 50 questions on the exam (100 points total). Alert proctors if there are missing pages. Always read all
answer choices carefully before choosing the best answer based on Biol 355 B0 course material.
Study-prep note: This is an original practice version formatted to match the provided sample for exam preparation.
1. Which of the following statements about general life-history tradeoffs is/are TRUE?
I. High fecundity and rapid maturity often occur with lower parental investment.
II. High survivorship and slower growth often occur with greater investment per offspring.
III. Every organism can maximize fecundity, growth, and survival at the same time.
IV. Energy used for reproduction cannot also be used for maintenance and growth.
a. I and III
*b. I, II, and IV
c. II and III
d. III and IV
2. Which of the following is NOT normally treated as a core characteristic of population distribution?
a. Geographic range
b. Abundance
c. Dispersion pattern
*d. Petal color
1
, 3. A shrub introduced to coastal dunes grows best on sandy soils with high sun and mild winters. A researcher maps
regions with similar climate and soil conditions to predict where it may spread. Which tool is being applied?
*a. Ecological niche modeling
b. Random quadrat sampling
c. Primary succession
d. Mark-recapture estimation
4. Which observation best illustrates a uniform dispersion pattern?
a. Aphids clustering on the newest leaves of a plant
b. Mushrooms appearing in patches near decaying logs
*c. Nesting seabirds maintaining evenly spaced territories
d. Wildflowers scattered with no visible pattern
5. Which observation best illustrates random dispersion?
*a. Barnacles attached wherever larvae settle on a broad rock face
b. Wolves defending territories of similar size
c. Termites concentrated in a single fallen log
d. Fish schooling tightly when a predator appears
6. Which statement about the geographic range of a species is FALSE?
a. Range boundaries can shift when climate changes.
b. Local abundance is often lower near range edges.
*c. A species always has equal density throughout its entire range.
d. Dispersal limits may restrict a species from otherwise suitable habitat.
7. A survivorship curve for humans in many developed countries is closest to which type?
*a. Type I
b. Type II
c. Type III
d. Type IV
8. Which organism is most likely to show a Type III survivorship pattern?
a. Human
b. Elephant
*c. Oak tree
d. Small songbird with constant adult mortality
9. A population has a per capita birth rate of 0.35 and a per capita death rate of 0.20. What is r?
*a. 0.15
b. 0.55
c. -0.15
d. 1.75
2
