APES Exam Review questions and well updated
answers
S Which of the following is not an abiotic factor? - ANSWER>>Bacteria
Which of the following are biotic?
I. Decomposers
II. Energy flow
III. Producers - ANSWER>>I and III- decomposers and producers
Which of the following best describes an ecosystem? - ANSWER>>All biotic and
abiotic factors
Choose the correct sequence for energy flow within an ecosystem -
ANSWER>>Producers → herbivores → carnivores → scavengers
Of the following, which are products of photosynthesis?
I. Glucose
II. Carbon dioxide
III. Water - ANSWER>>I only- glucose
Which of the following are needed for photosynthesis? - ANSWER>>Water, solar
energy and carbon dioxide
Which of the following organisms performs cellular respiration?
I. Autotrophs
II. Heterotrophs
III. Decomposers - ANSWER>>I, II, and III
The sun is the ultimate source of energy for terrestrial ecosystems. Approximately
how much of the potential energy available from the sun's rays hitting the earth is
used in photosynthesis? - ANSWER>>1%
, Which of the following is the approximate efficiency of the energy transfer as
energy flows through the food chain? - ANSWER>>10%
A forest has a GPP of 3.8 kg C/m2/year and the rate of cellular respiration is 2.4 kg
C/m2/year. What is the NPP? - ANSWER>>1.4 kg C/m2/year
How is the majority of energy within an ecosystem lost? - ANSWER>>Heat loss
Which of the following statements best describes the concept of GPP (Gross
Primary Production)? - ANSWER>>Total amount of solar energy that producers
capture via photosynthesis
Which of the following statements best describes the concept of NPP (Net
Primary Production)? - ANSWER>>Energy captured minus energy lost
Use Figure 3-1. Which of the organisms illustrated above would be considered
autotrophs? - ANSWER>>Grass
Use Figure 3-1. Which of the organisms illustrated above would be considered
primary consumers? - ANSWER>>Rabbit
Use Figure 3-1. Which of the organisms illustrated above would be considered a
decomposer? - ANSWER>>Bacteria
Use Figure 3-1. Which of the organisms illustrated above would be the top
predator? - ANSWER>>Lion
Use Figure 3-1. Which of the organisms above would occupy the lowest trophic
level? - ANSWER>>Giraffe
Use Figure 3-2. Which ecosystem is the most productive? - ANSWER>>Swamps
and marshes
answers
S Which of the following is not an abiotic factor? - ANSWER>>Bacteria
Which of the following are biotic?
I. Decomposers
II. Energy flow
III. Producers - ANSWER>>I and III- decomposers and producers
Which of the following best describes an ecosystem? - ANSWER>>All biotic and
abiotic factors
Choose the correct sequence for energy flow within an ecosystem -
ANSWER>>Producers → herbivores → carnivores → scavengers
Of the following, which are products of photosynthesis?
I. Glucose
II. Carbon dioxide
III. Water - ANSWER>>I only- glucose
Which of the following are needed for photosynthesis? - ANSWER>>Water, solar
energy and carbon dioxide
Which of the following organisms performs cellular respiration?
I. Autotrophs
II. Heterotrophs
III. Decomposers - ANSWER>>I, II, and III
The sun is the ultimate source of energy for terrestrial ecosystems. Approximately
how much of the potential energy available from the sun's rays hitting the earth is
used in photosynthesis? - ANSWER>>1%
, Which of the following is the approximate efficiency of the energy transfer as
energy flows through the food chain? - ANSWER>>10%
A forest has a GPP of 3.8 kg C/m2/year and the rate of cellular respiration is 2.4 kg
C/m2/year. What is the NPP? - ANSWER>>1.4 kg C/m2/year
How is the majority of energy within an ecosystem lost? - ANSWER>>Heat loss
Which of the following statements best describes the concept of GPP (Gross
Primary Production)? - ANSWER>>Total amount of solar energy that producers
capture via photosynthesis
Which of the following statements best describes the concept of NPP (Net
Primary Production)? - ANSWER>>Energy captured minus energy lost
Use Figure 3-1. Which of the organisms illustrated above would be considered
autotrophs? - ANSWER>>Grass
Use Figure 3-1. Which of the organisms illustrated above would be considered
primary consumers? - ANSWER>>Rabbit
Use Figure 3-1. Which of the organisms illustrated above would be considered a
decomposer? - ANSWER>>Bacteria
Use Figure 3-1. Which of the organisms illustrated above would be the top
predator? - ANSWER>>Lion
Use Figure 3-1. Which of the organisms above would occupy the lowest trophic
level? - ANSWER>>Giraffe
Use Figure 3-2. Which ecosystem is the most productive? - ANSWER>>Swamps
and marshes
