APUS CLE: BIOL134 C001 Win 20 - Exam 1 (Ch 21-27)- Week 4| Questions and
Answers Latest Updated (Graded A+)- American Military University
Part 1 of 1 - 100.0 Points
Question 1 of 40
What is the largest available pool of nitrogen? 2.5 Points
A. gaseous nitrogen
B. ammonia
C. nitrates
D. nitrites
Feedback: Incorrect-
Learning Objective: Explain the need for nitrogen fixation and how it is accomplished
Question 2 of 40
Which of the following would belong to the deuterostomes? 2.5 Points
A. roundworm and flatworm
B. sea urchin and salamander
C. crayfish and snail
D. jellyfish and cricket
Feedback: Correct
Question 3 of 40
Page 1 of 15
, Which of the following is the group of plants that is the closest extant relative of early terrestrial plants? 2.5 Points
A. tracheophytes
B. bryophytes
C. chlorophytes
D. streptophytes
Feedback: Correct
Question 4 of 40
What two eukaryotic organelles are thought to have arisen from endosymbiosis? 2.5 Points
A. nucleus and endoplasmic reticulum
B. chloroplasts and mitochondria
C. endoplasmic reticulum and the Golgi apparatus
D. cytoskeleton and flagella
Feedback: Learning Objective: Describe the characteristic structures within a eukaryotic cell and how the
endosymbiotic theory explains some of these structures
Question 5 of 40
Observing specimens of land plants under the microscope, you see structures not found in algae. What 2.5 Points
challenge of living on land does each structure address?
A. competition
B. desiccation
C. gravity
D. radiation
1. Spores and pollen are covered by a tough, yellow, substance made of cross-linked lipids.
2. The tip of the shoots and roots have an apical meristem that allows rapid growth.
3. The shoots have many colorful pigments besides those needed for photosynthesis
4. Stems have cellulose and lignin.
Page 2 of 15
Answers Latest Updated (Graded A+)- American Military University
Part 1 of 1 - 100.0 Points
Question 1 of 40
What is the largest available pool of nitrogen? 2.5 Points
A. gaseous nitrogen
B. ammonia
C. nitrates
D. nitrites
Feedback: Incorrect-
Learning Objective: Explain the need for nitrogen fixation and how it is accomplished
Question 2 of 40
Which of the following would belong to the deuterostomes? 2.5 Points
A. roundworm and flatworm
B. sea urchin and salamander
C. crayfish and snail
D. jellyfish and cricket
Feedback: Correct
Question 3 of 40
Page 1 of 15
, Which of the following is the group of plants that is the closest extant relative of early terrestrial plants? 2.5 Points
A. tracheophytes
B. bryophytes
C. chlorophytes
D. streptophytes
Feedback: Correct
Question 4 of 40
What two eukaryotic organelles are thought to have arisen from endosymbiosis? 2.5 Points
A. nucleus and endoplasmic reticulum
B. chloroplasts and mitochondria
C. endoplasmic reticulum and the Golgi apparatus
D. cytoskeleton and flagella
Feedback: Learning Objective: Describe the characteristic structures within a eukaryotic cell and how the
endosymbiotic theory explains some of these structures
Question 5 of 40
Observing specimens of land plants under the microscope, you see structures not found in algae. What 2.5 Points
challenge of living on land does each structure address?
A. competition
B. desiccation
C. gravity
D. radiation
1. Spores and pollen are covered by a tough, yellow, substance made of cross-linked lipids.
2. The tip of the shoots and roots have an apical meristem that allows rapid growth.
3. The shoots have many colorful pigments besides those needed for photosynthesis
4. Stems have cellulose and lignin.
Page 2 of 15
