(UCSB) EEMB 2 – MIDTERM 1 EXAM WITH CORRECT ACTUAL QUESTIONS AND CORRECTLY WELL DEFINED ANSWERS LATEST ALREADY GRADED A+

(UCSB) EEMB 2 – MIDTERM 1 EXAM WITH
CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS
LATEST ALREADY GRADED A+



UCSB EEMB 2 – Midterm 1 Practice Exam (Questions 1–50)
1. What is the primary focus of ecology?


A. Cellular structure
B. Interactions between organisms and environment
C. DNA replication
D. Fossil formation


✔ Answer: B


Explanation: Ecology studies how organisms interact with
each other and their physical environment, including energy
flow and ecosystem dynamics.

,2. Which level of organization is the largest?


A. Population
B. Community
C. Ecosystem
D. Biosphere


✔ Answer: D


Explanation: The biosphere includes all ecosystems on
Earth.


3. A population is best defined as:


A. All organisms in an ecosystem
B. A group of individuals of the same species in an area
C. Different species in a habitat
D. A food web


✔ Answer: B

,Explanation: A population consists of individuals of the
same species living in a defined area.


4. Which factor is density-dependent?


A. Earthquake
B. Hurricane
C. Disease
D. Temperature


✔ Answer: C


Explanation: Disease spreads more easily as population
density increases.


5. Carrying capacity refers to:


A. Maximum migration rate
B. Maximum population size an environment supports
C. Birth rate only
D. Genetic variation

, ✔ Answer: B


Explanation: It is the limit of individuals an environment can
sustain long-term.


6. Logistic growth is characterized by:


A. Constant growth
B. J-shaped curve
C. S-shaped curve
D. No growth


✔ Answer: C


Explanation: Logistic growth slows as resources become
limited.


7. Which is an abiotic factor?


A. Bacteria